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#!/bin/bash --norc
# vim:sts=4:sw=4:ts=8:et
# mkdumprd
#
# Copyright 2005 Red Hat, Inc.
#
# Written by Erik Troan <ewt@redhat.com>
#
# Contributors:
# Elliot Lee <sopwith@cuc.edu>
# Miguel de Icaza <miguel@nuclecu.unam.mx>
# Christian 'Dr. Disk' Hechelmann <drdisk@ds9.au.s.shuttle.de>
# Michael K. Johnson <johnsonm@redhat.com>
# Pierre Habraken <Pierre.Habraken@ujf-grenoble.fr>
# Jakub Jelinek <jakub@redhat.com>
# Carlo Arenas Belon (carenas@chasqui.lared.net.pe>
# Keith Owens <kaos@ocs.com.au>
# Bernhard Rosenkraenzer <bero@redhat.com>
# Matt Wilson <msw@redhat.com>
# Trond Eivind Glomsrød <teg@redhat.com>
# Jeremy Katz <katzj@redhat.com>
# Preston Brown <pbrown@redhat.com>
# Bill Nottingham <notting@redhat.com>
# Guillaume Cottenceau <gc@mandrakesoft.com>
# Peter Jones <pjones@redhat.com>
# Neil Horman <nhorman@redhat.com>
# Jarod Wilson <jwilson@redhat.com>
#
# Note: this scripts use 4 spaces as indent.
cmdname=`basename $0`
umask 0022
export MALLOC_PERTURB_=204
PATH=/sbin:/usr/sbin:/bin:/usr/bin:$PATH
export PATH
. /etc/rc.d/init.d/functions
VERSION=5.0.39
PROBE="yes"
MODULES=""
PREMODS=""
DMRAIDS=""
MPATHS=""
CLUSTER_CONFIG_FILE="/etc/cluster/cluster.conf"
CLUSTER_NODE_LIST=""
FENCE_KDUMP_CONFIG="/etc/sysconfig/fence_kdump"
FENCE_KDUMP_OPTS=""
CONFMODS="$MODULES"
MODULES=""
ARCH=$(uname -m)
withusb=yes
compress=1
allowmissing=""
target=""
kernel=""
force=""
verbose=""
img_vers=""
builtins=""
rc=0
IMAGESIZE=8000
PRESCSIMODS="sd_mod"
fstab="/etc/fstab"
vg_list=""
net_list=""
USING_METHOD=""
SAVE_PATH=/var/crash
bin=""
KDUMP_POST=""
extra_kdump_mods=""
DUMP_TARGET=""
DUMP_FSTYPE=""
SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa"
DMESG_COLLECTOR="/sbin/vmcore-dmesg"
FONTDIR=/lib/kbd/consolefonts
DEFAULT_FONT=LatArCyrHeb-16.psfu.gz
override_resettable=0
DISK_TIMEOUT=180
DEBUG_MEM_LEVEL="0"
FIPS_FILE="/proc/sys/crypto/fips_enabled"
error()
{
NONL=""
if [ "$1" == "-n" ]; then
NONL="-n"
shift
fi
echo $NONL "$@" >&2
}
cleanup_and_exit ()
{
rm -rf $MNTIMAGE
rm -f $IMAGE
rm -f $TMPDISKLIST
exit $1
}
strip_comments() {
echo $@ | sed -e 's/\(.*\)#.*/\1/'
}
function make_trace_mem()
{
# parameters: msg [trace_level:trace]...
msg=$1
shift
if [ "$DEBUG_MEM_LEVEL" -gt 0 ]; then
make_trace show_memstats $DEBUG_MEM_LEVEL "[debug_mem]" "$msg" "$@"
fi
}
function make_trace()
{
# parameters: func log_level prefix msg [trace_level:trace]...
func=$1
shift
log_level=`echo "$1" | grep -o '^[0-9]\+'`
shift
prefix=$1
shift
msg=$1
shift
if [ -z "$log_level" ]; then
return
fi
# deal with indentation
space_at_front=`echo "$msg" | grep -o "^[[:space:]]\+"`
msg=`echo "$msg" | sed 's/^\s\+//'`
msg_printed=0
while [ $# -gt 0 ]; do
trace_level=`echo "$1" | grep -o '^[0-9]\+'`
trace_in_higher_levels=`echo "$1" | grep -o '+'`
trace=`echo $1 | sed "s/^.*://"`
if [ -z "$trace_level" ]; then
trace_level=0
fi
insert_trace=0
if [ -n "$trace_in_higher_levels" ]; then
if [ "$log_level" -ge "$trace_level" ]; then
insert_trace=1
fi
else
if [ "$log_level" -eq "$trace_level" ]; then
insert_trace=1
fi
fi
if [ $insert_trace -eq 1 ]; then
if [ $msg_printed -eq 0 ]; then
emit "${space_at_front}echo \"$prefix $msg\""
msg_printed=1
fi
emit "${space_at_front}$func $trace"
fi
shift
done
}
if [ -z "$TMPDIR" ]
then
for t in /tmp /var/tmp /root ${PWD}; do
if [ ! -w $t ]; then continue; fi
TMPDIR=$t
break
done
else
if [ ! -w "$TMPDIR" ]
then
error "Can't write to $TMPDIR."
exit 1
fi
fi
if [ -z "$TMPDIR" ]; then
error "No temporary directory could be found."
exit 1
fi
if [ $TMPDIR = "/root" -o $TMPDIR = "${PWD}" ]; then
error "WARNING: using $TMPDIR for temporary files"
fi
#for other commands below, like 'mount'
export TMPDIR
TMPDISKLIST=""
MNTIMAGE=`mktemp -d ${TMPDIR}/initrd.XXXXXX`
IMAGE=`mktemp ${TMPDIR}/initrd.img.XXXXXX`
RCFILE=$MNTIMAGE/init
vecho()
{
NONL=""
if [ "$1" == "-n" ]; then
NONL="-n"
shift
fi
[ -n "$verbose" ] && echo $NONL "$@"
}
usage () {
if [ "$1" == "-n" ]; then
cmd=echo
else
cmd=error
fi
$cmd "usage: $cmdname [--version] [--help] [-v] [-d] [-f] [--preload <module>]"
$cmd " [--image-version]"
$cmd " [--builtin=<module>] [--omit-dmraid]"
$cmd " [--fstab=<fstab>] [--nocompress] <initrd-image> <kernel-version>"
$cmd ""
$cmd " (ex: $cmdname /boot/initrd-2.2.5-15.img 2.2.5-15)"
if [ "$1" == "-n" ]; then
exit 0
else
cleanup_and_exit 1
fi
}
moduledep() {
deps=""
for i in `modprobe --set-version $kernel --show-depends $1 2>/dev/null | awk '/^insmod/ {print $2}'`
do
modname=`basename $i | sed -e's/\.ko//'`
if [ "$modname" == "$1" ]
then
continue
fi
deps="$deps $modname"
done
[ -n "$deps" ] && vecho ":$deps" || vecho
}
findone() {
find "$@" | /bin/awk '{print $1; exit}'
}
findall() {
find "$@"
}
find_dm_in_sysblock() {
local devnode=$1
local majmin
local device
[ ! -b "$devnode" ] && return 1;
majmin=$(get_numeric_dev dec $devnode)
[ -z "$majmin" ] && return 1
find -L /sys/block -maxdepth 2 -name dev | while read device ; do \
echo "$majmin" | cmp -s $device && echo $device ; done \
| sed -e 's,/dev$,,'
}
is_mpath() {
local major
local minor
local target
major=$(echo $1 | cut -d: -f1)
minor=$(echo $1 | cut -d: -f2)
for target in $(dmsetup -C -j $major -m $minor table 2>/dev/null | \
grep -v "No devices found" | awk ' { print $3 }') ; do
[ "$target" == "multipath" ] && return 0
done
return 1
}
find_mpath_deps() {
local devpath="/dev/$(echo $1 | sed -e 's,.*/\([^/]\+\),\1,' )"
local syspath="/sys/block/$(echo $1 | sed -e 's,.*/\([^/]\+\),\1,' )"
local arg2="$2"
local majmin=$(cat $syspath/dev)
local ret=1
if is_mpath ${majmin} ; then
arg2=yes
fi
slaves="$syspath/slaves/*"
for slave in $slaves ; do
[ -e $slave ] || continue
find_mpath_deps $(readlink $slave) ${arg2} && ret=0
done
if [ "$2" == "yes" ]; then
echo $devpath
fi
return $ret
}
dm_get_uuid() {
dmsetup info "$1" | awk '/^.*UUID.*/ {print $2}'
}
depsolve_modlist()
{
local TMPINMODS=$MODULES
local TMPOUTMODS=""
local i
local j
local mname
local dpcnt
local scnt
#
# So, basically, we just do this until TMPINMODS
# is an empty list
#
while [ -n "$TMPINMODS" ]
do
for i in $TMPINMODS
do
mname=`basename $i | sed -e's/\.ko//'`
dpcnt=`modprobe --set-version $kernel --show-depends $mname 2>/dev/null | awk '/^insmod/ {print $2}' | wc -l`
if [ $dpcnt -le 1 ]
then
# we have no dependencies, just add it to the list
echo "$TMPOUTMODS" | grep -q $i
if [ $? -ne 0 ]
then
TMPOUTMODS="$TMPOUTMODS $i"
fi
continue
fi
# We should start this counter at 1, since we expect that the last
# line output by modprobe --show-depends will be the module we
# specify as mname below, but since modprobe is busted and
# sometimes doesn't do that, we start at zero, and increment an
# extra time below if we are searching for a dependency on ourself
let scnt=0
for j in `modprobe --set-version $kernel --show-depends $mname 2>/dev/null | awk '/^insmod/ {print $2}'`
do
echo $TMPOUTMODS | grep -q $j
if [ $? -eq 0 ]
then
let scnt=$scnt+1
fi
# here we are looking to see if the insmod line is for the
# module that we are searching for dependencies on. We do this
# because modprobe is busted in its show-depends line
echo $j | grep -q $i
if [ $? -eq 0 ]
then
let scnt=$scnt+1
fi
done
if [ "$scnt" == "$dpcnt" ]
then
echo "$TMPOUTMODS" | grep -q $i
if [ $? -ne 0 ]
then
TMPOUTMODS="$TMPOUTMODS $i"
fi
fi
#Finish for i loop
done
for j in $TMPOUTMODS
do
TMPTMPMODS=""
for z in $TMPINMODS
do
if [ "$j" == "$z" ]
then
continue
fi
TMPTMPMODS="$TMPTMPMODS $z"
done
TMPINMODS=$TMPTMPMODS
done
done
MODULES=$TMPOUTMODS
}
findmodule() {
local skiperrors=""
local mod_found=0
local deps
if [ $1 == "--skiperrors" ]; then
skiperrors=--skiperrors
shift
fi
local modName=$1
if [ "$modName" = "off" -o "$modName" = "null" ]; then
return
fi
if [ $(echo $modName | cut -b1) = "-" ]; then
skiperrors=--skiperrors
modName=$(echo $modName | cut -b2-)
fi
case "$MODULES " in
*"/$modName.ko "*) return ;;
esac
if echo $builtins | egrep -q '(^| )'$modName'( |$)' ; then
vecho "module $modName assumed to be built in"
return
fi
# special cases
case "$modName" in
raid[456])
modName=raid456
;;
esac
if [ "$modName" = "i2o_block" ]; then
findmodule i2o_core
findmodule -i2o_pci
modName="i2o_block"
elif [ "$modName" = "ppa" ]; then
findmodule parport
findmodule parport_pc
modName="ppa"
elif [ "$modName" = "sbp2" ]; then
findmodule ieee1394
findmodule ohci1394
modName="sbp2"
else
moduledep $modName
for i in $deps; do
findmodule $i
done
fi
fmPath=$(modprobe --set-version $kernel -l $modName 2>/dev/null)
if [ ! -f "/lib/modules/$kernel/$fmPath" ]; then
for modDir in /lib/modules/$kernel/updates /lib/modules/$kernel
do
if [ -d $modDir ]
then
fmPath=$(findone $modDir -name $modName.ko)
if [ -f "$fmPath" ]
then
fmPath=${fmPath#/lib/modules/$kernel/}
mod_found=1
break
fi
fi
done
else
mod_found=1
fi
if [ $mod_found -eq 0 ]; then
if [ -n "$skiperrors" ]; then
return
fi
# ignore the absence of the scsi modules
for n in $PRESCSIMODS; do
if [ "$n" = "$modName" ]; then
return;
fi
done;
if [ -n "$allowmissing" ]; then
error "WARNING: No module $modName found for kernel $kernel, continuing anyway"
return
fi
error "No module $modName found for kernel $kernel, aborting."
cleanup_and_exit 1
fi
# only need to add each module once
MODULES="$MODULES /lib/modules/$kernel/$fmPath"
# need to handle prescsimods here -- they need to go _after_ scsi_mod
if [ "$modName" = "scsi_mod" ]; then
for n in $PRESCSIMODS ; do
findmodule $n
done
fi
}
find_scsi_dh_modules() {
local scsipath=$(modprobe --set-version $kernel --show-depends sg 2>/dev/null | awk '/^insmod / { print $2; }' | tail -1)
scsipath="${scsipath%%sg.ko}device_handler/"
[ -d "$scsipath" ] || return
for x in $scsipath/*.ko ; do
local h=${x##*/}
findmodule -${h%%.ko}
done
}
inst() {
if [ "$#" != "2" ];then
echo "usage: inst <file> <destination>"
return
fi
vecho "$1 -> $2"
cp $1 $2
}
handle_multipath () {
local sysdev
local deps
local device=$1
case " $multipath_devices " in
*" $device "*)
return ;;
*) multipath_devices="$multipath_devices $device" ;;
esac
findmodule -dm-mod
findmodule -dm-mirror
findmodule -dm-zero
findmodule -dm-snapshot
find_scsi_dh_modules
findmodule -dm-multipath
findmodule -dm-round-robin
sysdev=$(find_dm_in_sysblock /dev/$device)
deps=$(find_mpath_deps ${sysdev})
vecho -n "multipath components of $device are "
for dep in ${deps}; do
vecho -n "$dep "
done
vecho
for dep in ${deps}; do
findstoragedriver ${dep##/dev/}
done
}
resolve_dm() {
# resolve device mapper nodes to something of the form /dev/mapper/foo
if [[ ! "$1" =~ ^dm- ]]; then
echo $1
return 0
fi
majmin=$(cat /sys/block/$1/dev)
for dmdev in /dev/mapper/* ; do
dmnum=$(get_numeric_dev dec $dmdev)
if [ "$dmnum" = "$majmin" ]; then
echo ${dmdev#/dev/}
break
fi
done
}
handledm () {
local major=$1
local minor=$2
local origdevice=$3
# Check if it is a multipath device
if is_mpath "$major:$minor"; then
vecho "Found dm-multipath component $origdevice"
handle_multipath ${origdevice}
return 0;
fi
while read dmstart dmend dmtype r0 r1 r2 r3 r4 r5 r6 r7 r8 r9 ; do
case "$dmtype" in
linear)
slavedev=$(find -L /sys/block -maxdepth 2 -name dev \
| while read device ; do \
echo "$r0" \
| cmp -s $device && echo $device ; \
done \
| sed -e 's,.*/\([^/]\+\)/dev,\1,;s,!,/,' )
slavedev=$(resolve_dm ${slavedev##/dev/})
vecho "$device device is linear, slave is $slavedev"
handlelvordev "/dev/$slavedev"
;;
esac
done << EOF
$(dmsetup table -j $major -m $minor 2>/dev/null)
EOF
}
findstoragedriverinsys () {
while [ ! -L device ]; do
[ "$PWD" = "/sys" ] && return
cd ..
done
cd $(readlink ./device)
if is_iscsi $PWD; then
handleiscsi "$PWD"
fi
while [ ! -f modalias ]; do
[ "$PWD" = "/sys/devices" ] && return
cd ..
done
modalias=$(cat modalias)
for driver in $(modprobe --set-version $kernel --show-depends $modalias 2>/dev/null| awk '/^insmod/ { print gensub(".*/","","g",$2) }') ; do
findmodule ${driver%%.ko}
done
}
get_part_sep()
{
local basedev=$1 sep
[ -z "$basedev" ] && return
if `echo $basedev | egrep -q '^cciss|^ida|^nvme'`; then
sep='p'
fi
echo $sep
}
get_basedev() {
local basedev sep
basedev=$(echo $1 | sed -e's/\/dev\///' -e's/[0-9]\+$//')
sep=$(get_part_sep $basedev)
if [ -n "$sep" ] && [ "$basedev" != "$1" ]; then
basedev=${basedev%$sep}
fi
echo $basedev
}
identify_critical_disk_by_vendor_model_type() {
local i
local a
local TMPNAME
local DSKSTRING
local found
local IDSTRING
local basedev=$1
[ -z "$TMPDISKLIST" ] && TMPDISKLIST=`mktemp ${TMPDIR}/disklist.XXXXXX`
if [ -d /sys/block/$basedev ]
then
TMPNAME=""
DSKSTRING=""
#only add devices which have a presence in sysfs
for i in "vendor" "model" "type"
do
TMPNAME=`cat /sys/block/$basedev/device/$i 2>/dev/null`
DSKSTRING="$DSKSTRING $TMPNAME"
done
DSKSTRING=$(echo $DSKSTRING | sed -e's/ //g')
if grep -q "$DSKSTRING" "$TMPDISKLIST"
then
found=`awk '{ if($2 == "'"$DSKSTRING"'") print $3; }' $TMPDISKLIST`
echo -n "$basedev $DSKSTRING" > $TMPDISKLIST
else
found=0
echo -n "$basedev $DSKSTRING" >> $TMPDISKLIST
fi
for i in `ls /sys/block`
do
IDSTRING=""
if [ ! -d /sys/block/$i/device ]
then
continue
fi
for a in "vendor" "model" "type"
do
TMPNAME=`cat /sys/block/$i/device/$a 2>/dev/null`
IDSTRING="$IDSTRING $TMPNAME"
done
IDSTRING=$(echo $IDSTRING | sed -e's/ //g')
if [ "$DSKSTRING" == "$IDSTRING" ]
then
found=$(($found + 1))
fi
done
echo " $found">>$TMPDISKLIST
fi
}
identify_critical_disk_by_scsi_id() {
local scsi_id=""
scsi_id=$(/lib/udev/scsi_id --whitelisted --device=/dev/$1 --replace-whitespace)
if ! grep -q "$scsi_id" $MNTIMAGE/etc/critical_scsi_ids 2>/dev/null; then
echo "$scsi_id" >> $MNTIMAGE/etc/critical_scsi_ids
fi
}
is_virtio_disk_with_serial() {
[[ $(readlink /sys/block/$1) =~ virtio ]] && \
[ -n "$(cat /sys/block/$1/serial 2>/dev/null)" ]
}
identify_critical_disk_by_virtio_serial() {
local serial
serial=$(cat /sys/block/$1/serial 2>/dev/null)
if ! grep -q "$serial" $MNTIMAGE/etc/virtio_ids 2>/dev/null; then
echo "$serial" >> $MNTIMAGE/etc/virtio_ids
fi
}
# Check for a Storage Class Memory (SCM) device (s390 only).
is_scm() {
# /sys/block/scma -> ../devices/scm/0000000000000000/block/scma
if [[ $(readlink /sys/block/$1) =~ /scm/[0-9a-f][0-9a-f]*/ ]]; then
return 0
else
return 1
fi
}
identify_critical_disk_by_scmid() {
local scm_id
# /sys/block/scma/device -> ../../../0000000000000000/
scm_id=$(basename $(readlink /sys/block/$1/device))
if ! grep -q "$scm_id" $MNTIMAGE/etc/scm_ids 2>/dev/null; then
echo "$scm_id" >> $MNTIMAGE/etc/scm_ids
fi
}
# Check for DASD device (s390 only)
is_dasd() {
# /sys/block/dasda -> ../devices/css0/0.0.000c/0.0.23b5/block/dasda
if [[ $1 =~ dasd ]] && [[ $(readlink /sys/block/$1) =~ /css.*/ ]]; then
return 0
else
return 1
fi
}
identify_critical_disk_by_dasd_bus_id() {
local dasd_bus_id
dasd_bus_id=$(basename $(readlink /sys/block/$1/device))
if ! grep -q "$dasd_bus_id" $MNTIMAGE/etc/dasd_bus_ids 2>/dev/null; then
echo "$dasd_bus_id" >> $MNTIMAGE/etc/dasd_bus_ids
fi
}
#$1: device name: /dev/devname
#other logic to find critical disks should go to this function
identify_critical_disk() {
local basedev=$(get_basedev $1)
local scsiid
# don't block on cciss devices, parsing them in sysfs takes a special
# case and there might be some other old reason for this which are not
# clear. Also don't block on md/dm devices because we only need waiting
# for their children devices, and md/dm devices will be setup in later code.
if echo $basedev|egrep -s -q '(^cciss|^md|^dm|^mapper\/)'; then
return
fi
scsiid=$(/lib/udev/scsi_id --whitelisted /dev/$basedev --replace-whitespace)
#do not use scsi_id for qemu ide disks because the ids are not persistent.
if [ -n "$scsiid" ] && [ "$scsiid" = "${scsiid/QEMU_HARDDISK/}" ]; then
identify_critical_disk_by_scsi_id $basedev
elif is_virtio_disk_with_serial $basedev; then
identify_critical_disk_by_virtio_serial $basedev
elif is_scm $basedev; then
identify_critical_disk_by_scmid $basedev
elif is_dasd $basedev; then
identify_critical_disk_by_dasd_bus_id $basedev
else
identify_critical_disk_by_vendor_model_type $basedev
fi
}
findstoragedriver () {
local majmin
local device
local sysfs
for device in $@ ; do
identify_critical_disk $device
case " $handleddevices " in
*" $device "*)
continue ;;
*) handleddevices="$handleddevices $device" ;;
esac
grep -q "$device" /proc/mdstat
if [ $? == 0 ]; then
vecho "Found RAID component $device"
handleraid "$device"
continue
fi
if [[ "$device" =~ ^(dm-|mapper/|mpath/) ]]; then
device=$(resolve_dm $device)
vecho "Found DM device $device"
majmin=$(get_numeric_dev dec "/dev/$device")
sysfs=$(find_dm_in_sysblock /dev/$device)
handledm $(echo "$majmin" |cut -d : -f 1) $(echo "$majmin" |cut -d : -f 2) ${device}
continue;
fi
device=`echo $device | sed 's/\//\!/g'`
sysfs=$(findone -L /sys/block -maxdepth 2 -type d -name $device)
[ -z "$sysfs" ] && return
pushd $sysfs >/dev/null 2>&1
findstoragedriverinsys
popd >/dev/null 2>&1
done
}
kdump_is_bridge() {
[ -d /sys/class/net/"$1"/bridge ]
}
kdump_is_bond() {
[ -d /sys/class/net/"$1"/bonding ]
}
kdump_is_vlan() {
[ -f /proc/net/vlan/"$1" ]
}
findnetdriver() {
for device in $@ ; do
case " $handleddevices " in
*" $device "*)
continue ;;
*) handleddevices="$handleddevices $device" ;;
esac
if kdump_is_vlan "$device"; then
modalias=8021q
elif kdump_is_bond "$device"; then
modalias=bonding
elif kdump_is_bridge "$device"; then
modalias=bridge
elif [ -f /sys/class/net/$device/device/modalias ]; then
modalias=$(cat /sys/class/net/$device/device/modalias)
else
modalias=$(ethtool -i $device | awk '/^driver:/ { print $2 }')
fi
for driver in $(modprobe --set-version $kernel --show-depends $modalias 2>/dev/null| awk '/^insmod/ { print gensub(".*/","","g",$2) }') ; do
if [ "$driver" = "mlx4_core.ko" ]; then
extra_kdump_mods="$extra_kdump_mods mlx4_core"
fi
findmodule ${driver%%.ko}
done
done
}
iscsi_get_rec_val() {
# The open-iscsi 742 release changed to using flat files in
# /var/lib/iscsi.
result=$(/sbin/iscsiadm --show -m session -r ${1} | grep "^${2} = ")
result=${result##* = }
}
# No ibft handling yet.
iscsi_set_parameters() {
path=$1
vecho "setting iscsi parameters"
# Check once before getting explicit values, so we can output a decent
# error message.
if ! /sbin/iscsiadm -m session -r ${path} >/dev/null ; then
echo "Unable to find iscsi record for $path"
exit 1
fi
iscsi_get_rec_val $path "node.name"; tgt_name=${result}
iscsi_get_rec_val $path "node.conn\[0\].address"; tgt_ipaddr=${result}
}
is_iscsi() {
path=$1
if echo $path | grep -q "/platform/host[0-9]*/session[0-9]*/target[0-9]*:[0-9]*:[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*"; then
return 0
else
return 1
fi
}
# Taken from mkinitrd. Trimmed for bare minimum functionality.
handleiscsi() {
vecho "Found iscsi component $1"
for idev in $ISCSI_DEVICES; do
# try to avoid any duplication of a target
if [ "${idev%/*}" == "${1%/*}" ]; then
vecho "Already have ${1%/*}... skipping."
return
fi
done
findmodule iscsi_tcp
findmodule sd_mod
iscsi_set_parameters $1
netdev=$(/sbin/ip route get to $tgt_ipaddr | \
sed 's|.*dev \(.*\).*|\1|g' | awk '{ print $1; exit }')
mkdir -p $MNTIMAGE/etc/network/
handlenetdev $netdev
echo $netdev >> $MNTIMAGE/etc/iface_to_activate
ISCSI_DEVICES="$ISCSI_DEVICES $1"
vecho "iscsi component target is $tgt_name"
ISCSI_TARGETS="$ISCSI_TARGETS $tgt_name"
}
handleraid() {
local start=0
if [ -n "$noraid" -o ! -f /proc/mdstat ]; then
return 0
fi
levels=$(grep "^$1[ ]*:" /proc/mdstat | \
awk '{ print $4 }')
devs=$(grep "^$1[ ]*:" /proc/mdstat | \
awk '{ print gensub("\\[[0-9]*\\]","","g",gensub("^md.*raid[0-9]*","","1")) }')
for level in $levels ; do
case $level in
linear)
findmodule linear
start=1
;;
multipath)
findmodule multipath
start=1
;;
raid[01456] | raid10)
findmodule $level
start=1
;;
*)
error "raid level $level (in /proc/mdstat) not recognized"
;;
esac
done
findstoragedriver $devs
if [ "$start" = 1 ]; then
raiddevices="$raiddevices $1"
fi
return $start
}
check_encrypted() {
[ -f /etc/crypttab ] || return 0
local dev=$1
if lsblk -d -n -o TYPE "$dev" 2>/dev/null | grep -q crypt;
then
error "Device $dev is encrypted, can not be used in kdump"
cleanup_and_exit 1
fi
return 0
}
check_resettable() {
local path="/sys/$(udevadm info --query=all --name="$1" | awk '/^P:/ {print $2}' | sed -e 's/\(cciss[0-9]\+\/\).*/\1/g' -e 's/\/block\/.*$//')/resettable"
local resettable=1
if [ ! -f "$path" ]
then
return
else
resettable="$(cat $path)"
fi
if [ $resettable -eq 0 ]
then
if [ "$2" -eq 0 ]
then
error "Can not save vmcore to target device $1. This device can not be initialized in kdump kernel as it is not resettable"
else
error "Rootfs device $1 is not resettable, can not be used as the default target, please specify a default action"
fi
if [ "$override_resettable" -eq 0 ]
then
cleanup_and_exit 1
fi
fi
}
get_devname_from_uuid_label() {
local device="$1"
local IS_UUID IS_LABEL
IS_UUID=$(echo $device | grep UUID)
IS_LABEL=$(echo $device | grep LABEL)
if [ -n "$IS_UUID" -o -n "$IS_LABEL" ]; then
device=$(findfs $device)
if [ $? -ne 0 ]; then
echo "find device name failed for $device"
cleanup_and_exit 1
fi
fi
echo $device
}
handlelvordev() {
local dev=$(get_devname_from_uuid_label $1)
check_encrypted "$dev"
local vg=`lvs --noheadings -o vg_name $dev 2>/dev/null`
if [ -z "$vg" ]; then
vg=`lvs --noheadings -o vg_name $(echo $dev | sed -e 's#^/dev/mapper/\([^-]*\)-\(.*\)$#/dev/\1/\2#') 2>/dev/null`
fi
if [ -n "$vg" ]; then
vg=`echo $vg` # strip whitespace
case " $vg_list " in
*" $vg "*)
;;
*)
vg_list="$vg_list $vg"
for device in `vgdisplay -v $vg 2>/dev/null | sed -n 's/PV Name//p'`; do
check_resettable "$device" "$2"
check_encrypted "$device"
findstoragedriver ${device##/dev/}
done
;;
esac
else
check_resettable "$dev" "$2"
findstoragedriver ${dev##/dev/}
fi
}
get_routes() {
local dev="$1"
local routes=`/sbin/ip route show | grep "^[[:digit:]].*via.* $dev "`
if [ -z "$GATEWAY" ]
then
GATEWAY=`/sbin/ip route show | awk '/^default/ {print $3}'`
fi
if [ -n "$GATEWAY" ]
then
echo " " gateway $GATEWAY >> $MNTIMAGE/etc/network/interfaces
fi
if [ -n "$routes" ]
then
/sbin/ip route show | grep "^[[:digit:]].*via.* $dev " \
>> $MNTIMAGE/etc/network/route-static
fi
}
find_ifcfg_by_devicename() {
local dev=$1
if [ -f /etc/sysconfig/network-scripts/ifcfg-$dev ]
then
echo /etc/sysconfig/network-scripts/ifcfg-$dev
return
fi
for file in `ls /etc/sysconfig/network-scripts/ifcfg-*`
do
if grep -q -E "^[^#]*(DEVICE|device).*$dev" $file
then
echo $file
return
fi
done
}
handlenetdev() {
local dev=$1
local ifcfg_file
case " $handlednetdevices " in
*" $dev "*)
return ;;
*) handlednetdevices="$handlednetdevices $dev" ;;
esac
ifcfg_file=`find_ifcfg_by_devicename $dev`
if [ -z "${ifcfg_file}" ]; then
error "The ifcfg-$dev or ifcfg-xxx which contains DEVICE=$dev field doesn't exist."
cleanup_and_exit 1
fi
cp ${ifcfg_file} $MNTIMAGE/etc/ifcfg-$dev
BOOTPROTO=""
VLAN=""
MASTER=""
SLAVE=""
IPADDR=""
. $MNTIMAGE/etc/ifcfg-$dev
findnetdriver $dev
if [ "$BOOTPROTO" == "dhcp" ]
then
if ! grep -q "iface $dev inet dhcp" $MNTIMAGE/etc/network/interfaces 2>/dev/null
then
echo "iface $dev inet dhcp" >> $MNTIMAGE/etc/network/interfaces
fi
elif [ -n "$IPADDR" ]
then
if ! grep -q "iface $dev inet static" $MNTIMAGE/etc/network/interfaces 2>/dev/null
then
echo "iface $dev inet static" >> $MNTIMAGE/etc/network/interfaces
fi
echo " " address $IPADDR >> $MNTIMAGE/etc/network/interfaces
if [ -n "$NETMASK" ] && [ -n "$PREFIX" ]
then
echo "Warning: both NETMASK and PREFIX exist, mkdumprd is confused"
fi
if [ -n "$NETMASK" ]
then
echo " " netmask $NETMASK >> $MNTIMAGE/etc/network/interfaces
elif [ -n "$PREFIX" ]
then
echo " " netmask $(ipcalc -m 127.0.0.1/$PREFIX | cut -d'=' -f2) >> $MNTIMAGE/etc/network/interfaces
sed -i -e "s/PREFIX=.*/NETMASK=$(ipcalc -m 127.0.0.1/$PREFIX | cut -d'=' -f2)/" $MNTIMAGE/etc/ifcfg-$dev
fi
get_routes $dev
cp -a /etc/resolv.conf $MNTIMAGE/etc
else
echo iface $dev inet static >> $MNTIMAGE/etc/network/interfaces
echo " " address 0.0.0.0 >> $MNTIMAGE/etc/network/interfaces
echo " " netmask 0.0.0.0 >> $MNTIMAGE/etc/network/interfaces
echo " " bnmask 0 >> $MNTIMAGE/etc/network/interfaces
fi
#This lets us recursively handle stacked devices
if kdump_is_vlan "$dev"
then
if [ "$VLAN" == "yes" ]
then
echo >> $MNTIMAGE/etc/ifcfg-$dev
echo "BUS_ID=\"Vlan\"" >> $MNTIMAGE/etc/ifcfg-$dev
BASE_IFC=`awk '/^Device:/ {print $2}' /proc/net/vlan/$dev`
handlenetdev $BASE_IFC
fi
elif kdump_is_bond "$dev"
then
#This is a bond, pick up its slaves
for j in `cat /sys/class/net/$dev/bonding/slaves`
do
handlenetdev $j
done
echo >> $MNTIMAGE/etc/ifcfg-$dev
echo "BUS_ID=\"Bonding\"" >> $MNTIMAGE/etc/ifcfg-$dev
elif kdump_is_bridge "$dev"
then
for j in `ls /sys/class/net/$dev/brif`
do
#Ignore unsupported logical interface(/sys/class/net/$j/device/ doesn't exist)
#members, the bridge can still work as long as any real interface member available.
#We need to handle bond and vlan logical interfaces which were originally supported.
if [ -d /sys/class/net/$j/device ] || kdump_is_bond "$j" || kdump_is_vlan "$j"; then
handlenetdev $j
fi
done
echo >> $MNTIMAGE/etc/ifcfg-$dev
echo "BUS_ID=\"Bridge\"" >> $MNTIMAGE/etc/ifcfg-$dev
else
if [ "$VLAN" == "yes" ]
then
echo >> $MNTIMAGE/etc/ifcfg-$dev
echo "BUS_ID=\"Vlan\"" >> $MNTIMAGE/etc/ifcfg-$dev
BASE_IFC=`awk '/^Device:/ {print $2}' /proc/net/vlan/$dev`
handlenetdev $BASE_IFC
else
BUS_ID=`ls -l /sys/class/net/$dev/device | sed -e's/\(.*\/\)\(.*$\)/\2/'`
echo >> $MNTIMAGE/etc/ifcfg-$dev
echo "BUS_ID=\"$BUS_ID\"" >> $MNTIMAGE/etc/ifcfg-$dev
#DEV_ID is used for physical interfaces to distinguish different ports of the shared
#multiport card(thus of the same BUS_ID). Please see the logic in map_interface.
DEV_ID=`cat /sys/class/net/$dev/dev_id`
echo "DEV_ID=\"$DEV_ID\"" >> $MNTIMAGE/etc/ifcfg-$dev
fi
fi
}
arch_netdev_init() {
if [ "$ARCH" = "s390x" ]; then
if [ -e /sys/bus/ccw ]; then
install_ccw_net_init
emit "for i in \`ls /etc/ifcfg-* 2>/dev/null\`; do"
emit " ccw_net_init \$i"
emit "done"
else
error "/sys/bus/ccw is required to set up net devices"
cleanup_and_exit 1
fi
fi
}
while [ $# -gt 0 ]; do
case $1 in
--fstab*)
if echo $1 | grep -q '=' ; then
fstab=`echo $1 | sed 's/^--fstab=//'`
else
fstab=$2
shift
fi
;;
--with-usb)
withusb=yes
;;
--without-usb)
withusb=no
;;
--with*)
if echo $1 | grep -q '=' ; then
modname=`echo $1 | sed 's/^--with=//'`
else
modname=$2
shift
fi
basicmodules="$basicmodules $modname"
;;
--builtin*)
if echo $1 | grep -q '=' ; then
modname=`echo $1 | sed 's/^--builtin=//'`
else
modname=$2
shift
fi
builtins="$builtins $modname"
;;
--version)
echo "$cmdname: version $VERSION"
exit 0
;;
-v)
verbose=-v
;;
--nocompress)
compress=""
;;
--ifneeded)
# legacy
;;
-f)
force=1
;;
-d)
KDUMP_CONFIG_FILE=""
if [ -f /etc/kdump.conf ]; then
KDUMP_CONFIG_FILE="/etc/kdump.conf"
fi
;;
--preload*)
if echo $1 | grep -q '=' ; then
modname=`echo $1 | sed 's/^--preload=//'`
else
modname=$2
shift
fi
PREMODS="$PREMODS $modname"
;;
--force-scsi-probe)
forcescsi=1
;;
--omit-scsi-modules)
PRESCSIMODS=""
noscsi=1
;;
--force-raid-probe)
forceraid=1
;;
--omit-raid-modules)
noraid=1
;;
--force-lvm-probe)
forcelvm=1
;;
--omit-lvm-modules)
nolvm=1
;;
--omit-dmraid)
nodmraid=1
;;
--force-ide-probe)
forceide=1
;;
--image-version)
img_vers=yes
;;
--allow-missing)
allowmissing=yes
;;
--noresume)
noresume=1
;;
--override-resettable)
override_resettable=1
;;
--help)
usage -n
;;
*)
if [ -z "$target" ]; then
target=$1
elif [ -z "$kernel" ]; then
kernel=$1
else
usage
fi
;;
esac
shift
done
if [ -z "$target" -o -z "$kernel" ]; then
usage
fi
if [ -n "$img_vers" ]; then
target="$target-$kernel"
fi
if [ -z "$force" -a -f $target ]; then
error "$target already exists."
cleanup_and_exit 1
fi
if [ -n "$forcescsi" -a -n "$noscsi" ]; then
error "Can't both force scsi probe and omit scsi modules"
cleanup_and_exit 1
fi
if [ -n "$forceraid" -a -n "$noraid" ]; then
error "Can't both force raid probe and omit raid modules"
cleanup_and_exit 1
fi
if [ -n "$forcelvm" -a -n "$nolvm" ]; then
error "Can't both force LVM probe and omit LVM modules"
cleanup_and_exit 1
fi
if [ ! -d /lib/modules/$kernel ]; then
error 'No modules available for kernel "'${kernel}'".'
cleanup_and_exit 1
fi
if [ $UID != 0 ]; then
error "$cmdname must be run as root."
cleanup_and_exit 1
fi
vecho "Creating initramfs"
modulefile=/etc/modprobe.conf
if [ ! -f $modulefile ] ;then
if [ -d /etc/modprobe.d -a -n "$(ls -A /etc/modprobe.d)" ] ; then
modulefile="$(echo /etc/modprobe.d/*.conf)"
else
modulefile=""
fi
fi
which bmc-watchdog &> /dev/null && bmc-watchdog -g 2>/dev/null | grep Running &> /dev/null && findmodule ipmi_watchdog
for n in $PREMODS; do
findmodule $n
done
[ ! -d $MNTIMAGE/var/lib ] && mkdir -p $MNTIMAGE/var/lib
inst /var/lib/random-seed $MNTIMAGE/var/lib/random-seed 2>/dev/null || {
error "Saving random seed failed."
cleanup_and_exit 1
}
needusb=""
if [ -n "$withusb" -a "x$PROBE" == "xyes" ]; then
# If / or /boot is on a USB device include the driver. With root by
# label we could still get some odd behaviors
for fs in / /boot ; do
esc=$(echo $fs | sed 's,/,\\/,g')
dev=$(mount | awk "/ on ${esc} / { print \$1 }" | sed 's/[0-9]*$//' | cut -d/ -f3)
if [ "$(echo $dev | cut -c1-2)" = sd ]; then
if [ `which kudzu 2>/dev/null` ]; then
host=$(kudzu --probe -b scsi |
gawk '/^device: '${dev}'/,/^host:/ { if (/^host/) { print $2; exit; } }')
if [ -d /proc/scsi/usb-storage-${host} -o -f /proc/scsi/usb-storage/${host} ]; then
needusb=1
fi
fi
fi
done
fi
# for USB keyboard
if [ -z "$needusb" -a -n "$withusb" -a "x$PROBE" == "xyes" ];
then
for inputdev in $(ls -d /sys/class/input/input* 2>/dev/null); do
if [ ! -e ${inputdev}/mouse* ]; then
if [ "$(cat ${inputdev}/phys | cut -c1-3)" = usb ]; then
needusb=1
fi
fi
done
fi
if [ -n "$needusb" -a "x$PROBE" == "xyes" -a -n "$modulefile" ]; then
drivers=$(awk '/^alias[[:space:]]+usb-controller[0-9]* / { print $3}' $modulefile)
useUSB=0
if [ -n "$drivers" ]; then
useUSB=1
for driver in $drivers; do
findmodule $driver
done
fi
for x in $(awk '/^[eou]hci_hcd/ {print $1}' /proc/modules | sed '1!G;h;$!d') ; do
useUSB=1
findmodule $(echo $x | sed 's/_/-/')
done
if [ "$useUSB" == "1" ]; then
findmodule scsi_mod
findmodule sd_mod
fi
fi
if [ -n "$forcescsi" -o -z "$noscsi" -a "x$PROBE" == "xyes" ]; then
if [ -n "$modulefile" ]; then
scsimodules=`grep "alias[[:space:]]\+scsi_hostadapter" $modulefile | grep -v '^[ ]*#' | LC_ALL=C sort -u | awk '{ print $3 }'`
if [ -n "$scsimodules" ]; then
for n in $scsimodules; do
# for now allow scsi modules to come from anywhere. There are some
# RAID controllers with drivers in block/
findmodule $n
done
fi
fi
fi
# If we have ide devices and module ide, do the right thing
ide=/proc/ide/ide*
if [ -n "$forceide" -o -n "$ide" -a "x$PROBE" == "xyes" ]; then
findmodule -ide-disk
fi
# If we have dasd devices, include the necessary modules (S/390)
if [ "x$PROBE" == "xyes" -a -d /proc/dasd ]; then
findmodule -dasd_mod
findmodule -dasd_eckd_mod
findmodule -dasd_fba_mod
fi
add_rootfs()
{
if [ "x$PROBE" == "xyes" ]; then
rootfs=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $3; }}' $fstab)
rootopts=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $4; }}' $fstab)
# in case the root filesystem is modular
findmodule -${rootfs}
rootdev=$(awk '/^[ \t]*[^#]/ { if ($2 == "/") { print $1; }}' $fstab)
# check if it's nfsroot
if [ "$rootfs" == "nfs" ]; then
remote=$(echo $rootdev | cut -d : -f 1)
# FIXME: this doesn't handle ips properly
remoteip=$(getent ahostsv4 $remote | head -n 1 | cut -d ' ' -f 1)
netdev=`/sbin/ip route get to $remoteip |sed 's|.*dev \(.*\).*|\1|g' |awk {'print $1;'} |head -n 1`
net_list="$net_list $netdev"
# check if it's root by label
elif echo $rootdev | cut -c1-6 | grep -q "UUID=\|LABEL=" ; then
dev=`/sbin/findfs $rootdev`
if [ -n "$dev" ] ; then
vecho "Found root device $dev for $rootdev"
rootdev=$dev
fi
else
rootopts=$(echo $rootopts | sed -e 's/^r[ow],//' -e 's/,r[ow],$//' -e 's/,r[ow],/,/' \
-e 's/^r[ow]$/defaults/' -e 's/$/,ro/')
fi
[ "$rootfs" != "nfs" ] && handlelvordev $rootdev 1
fi
}
# If we use LVM or dm-based raid, include dm-mod
# XXX: dm not really supported yet.
testdm=""
[ -n "$vg_list" ] && testdm="yes"
[ -n "$forceraid" -o -n "$forcelvm" ] && testdm="yes"
[ -z "$nolvm" -o -z "$noraid" ] && testdm="yes"
[ "x$PROBE" != "xyes" ] && testdm=""
if [ -n "$testdm" ]; then
if [ -x /sbin/dmsetup -a -e /dev/mapper/control ]; then
dmout=$(/sbin/dmsetup ls 2>/dev/null)
if [ "$dmout" != "No devices found" -a "$dmout" != "" ]; then
findmodule -dm-mod
# DM requires all of these to be there in case someone used the
# feature. broken. (#132001)
findmodule -dm-mirror
findmodule -dm-zero
findmodule -dm-snapshot
fi
fi
if [ -x /sbin/dmraid -a -z "$nodmraid" ]; then
NOBLK=`/sbin/dmraid -s -craidname 2>/dev/null | grep "no block devices"`
NORAD=`/sbin/dmraid -s -craidname 2>/dev/null | grep "no raid disks"`
if [ -z "$NOBLK" ] && [ -z "$NORAD" ]
then
for raid in $(/sbin/dmraid -s -craidname 2>/dev/null) ; do
DMRAIDS="$DMRAIDS $raid"
done
fi
fi
fi
if [ "$useUSB" == "1" ]; then
findmodule usb-storage
fi
for n in $basicmodules; do
findmodule $n
done
for n in $CONFMODS; do
findmodule $n
done
vecho "Using modules:$MODULES"
cemit()
{
cat >> $RCFILE
}
emit()
{
NONL=""
if [ "$1" == "-n" ]; then
NONL="-n"
shift
fi
echo $NONL "$@" >> $RCFILE
}
kdump_chk()
{
rc=`eval $1` && return $rc
echo "$KDUMP_CONFIG_FILE: $2"
cleanup_and_exit 1
}
# Tests if fence_kdump is configured in Pacemaker cluster.
is_pcs_fence_kdump()
{
[ -x /usr/sbin/fence_kdump_send ] || return 1
[ -f "$CLUSTER_CONFIG_FILE" ] || return 1
}
# Returns list of nodes defined in Pacemaker cluster.
get_pcs_cluster_nodes()
{
echo "xpath /cluster/clusternodes/clusternode/@name" \
| xmllint --shell $CLUSTER_CONFIG_FILE | grep content | cut -d'=' -f2
}
# get_option_value <option_name>
# Retrieves value of option defined in /etc/kdump.conf.
get_option_value()
{
echo $(strip_comments `grep ^$1 $KDUMP_CONFIG_FILE | tail -1 | cut -d\ -f2-`)
}
# Tests if fence_kdump is configured using options in /etc/kdump.conf.
is_generic_fence_kdump()
{
[ -x /usr/sbin/fence_kdump_send ] || return 1
grep -q "^fence_kdump_nodes" $KDUMP_CONFIG_FILE
}
# Reads list of cluster nodes, filters local IPs and setups network for them.
# Nodes to send fence_kdump notification to are stored in CLUSTER_NODE_LIST.
# Other arguments for fence_kdump_send are stored in FENCE_KDUMP_OPTS.
setup_cluster_nodes_and_options()
{
# setup fence_kdump
local nodelist=""
if is_generic_fence_kdump; then
# fence_kdump setup for generic clusters
nodelist=$(get_option_value "fence_kdump_nodes")
# read fence_kdump_send options and store them to FENCE_KDUMP_OPTS
FENCE_KDUMP_OPTS=$(get_option_value "fence_kdump_args")
elif is_pcs_fence_kdump; then
# fence_kdump setup for Pacemaker clusters
nodelist=$(get_pcs_cluster_nodes)
# read fence_kdump_send options and store them to FENCE_KDUMP_OPTS
if [ -f "$FENCE_KDUMP_CONFIG" ]; then
. "$FENCE_KDUMP_CONFIG"
fi
fi
if [ -n "$nodelist" ]; then
for node in ${nodelist}; do
addr=`getent ahostsv4 $node | head -n 1 | cut -d' ' -f1`
netdev=`/sbin/ip route get to $addr 2>&1`
if [ -z "$addr" ]; then
addr6=`getent ahostsv6 $node | head -n 1 | cut -d' ' -f1`
if [ ! -z "$addr6" ]; then
error "WARNING: Cluster is using IPv6 for communication, IPv6 is not supported in RHEL6 kdump, system might be fenced while saving vmcore resulting in incomplete vmcore";
else
error "WARNING: Unable to find IP of cluster node, system might get fenced while saving vmcore resulting in incomplete vmcore";
fi
return 1
fi
if echo $netdev | grep -q ^local; then
continue
fi
# add node ip address to node list
CLUSTER_NODE_LIST="$CLUSTER_NODE_LIST $addr"
if echo $netdev | grep -q via; then
netdev=`echo $netdev | awk '{print $5}' | head -n 1`
else
netdev=`echo $netdev | awk '{print $3}' | head -n 1`
fi
mkdir -p $MNTIMAGE/etc/network/
handlenetdev $netdev
echo $netdev >> $MNTIMAGE/etc/iface_to_activate
done
if [ -n "$CLUSTER_NODE_LIST" ]; then
bin="$bin /usr/sbin/fence_kdump_send"
fi
fi
}
if [ -z "$MNTIMAGE" -o -z "$IMAGE" ]; then
error "Error creating temporaries. Try again"
cleanup_and_exit 1
fi
# Just get all the modules that are currently loaded
# We're likely to need them
for i in `lsmod | tail --lines=+2 | awk '{print $1}'`
do
findmodule -$i
echo $MODULES | grep -q $i
if [ $? -ne 0 ]
then
ALTERNATE=`echo $i | sed -e's/_/-/g'`
findmodule $ALTERNATE
fi
done
#START BUILDING INITRD HERE
mkdir -p $MNTIMAGE
mkdir -p $MNTIMAGE/lib
mkdir -p $MNTIMAGE/bin
mkdir -p $MNTIMAGE/etc
mkdir -p $MNTIMAGE/dev
mkdir -p $MNTIMAGE/proc
mkdir -p $MNTIMAGE/sys
mkdir -p $MNTIMAGE/tmp
mkdir -p $MNTIMAGE/sysroot
mkdir -p $MNTIMAGE/modules
mkdir -p $MNTIMAGE/usr/share/udhcpc
mkdir -p $MNTIMAGE/var/run
mkdir -p $MNTIMAGE/etc/network/if-pre-up.d
mkdir -p $MNTIMAGE/etc/network/if-up.d
mkdir -p $MNTIMAGE/etc/network/if-pre-down.d
mkdir -p $MNTIMAGE/etc/network/if-down.d
mkdir -p $MNTIMAGE/etc/network/if-post-down.d
ln -s bin $MNTIMAGE/sbin
if [ -n "$KDUMP_CONFIG_FILE" ]; then
while read config_opt config_val; do
# remove inline comments after the end of a directive.
config_val=$(strip_comments $config_val)
case "$config_opt" in
net|nfs|nfs4|ssh)
if [ "$config_opt" = "net" ]; then
USE_SSH=`echo $config_val | grep @`
if [ -n "$USE_SSH" ]; then
USING_METHOD="ssh"
else
USING_METHOD="nfs"
fi
else
USING_METHOD="$config_opt"
fi
#grab remote host and xlate into numbers
rhost=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`
need_dns=`echo $rhost|grep "[a-zA-Z]"`
remoteip=$rhost
[ -n "$need_dns" ] && remoteip=`getent ahostsv4 $rhost | head -n 1 | cut -d' ' -f1`
#find ethernet device used to route to remote host, ie eth0
netdev=`/sbin/ip route get to $remoteip 2>&1`
[ $? != 0 ] && echo "Bad kdump location: $config_val" && cleanup_and_exit 1
DUMP_TARGET=$config_val
#the field in the ip output changes if we go to another subnet
OFF_SUBNET=`echo $netdev | grep via`
if [ -n "$OFF_SUBNET" ]
then
# we are going to a different subnet
netdev=`echo $netdev|awk '{print $5;}'|head -n 1`
else
# we are on the same subnet
netdev=`echo $netdev|awk '{print $3}'|head -n 1`
fi
#add the ethernet device to the list of modules
mkdir -p $MNTIMAGE/etc/network/
handlenetdev $netdev
echo $netdev >> $MNTIMAGE/etc/iface_to_activate
#load nfs modules, if needed
echo $config_val | grep -v "@" > /dev/null && findmodule nfs
;;
raw)
USING_METHOD="raw"
DUMP_TARGET=$config_val
handlelvordev $config_val 0
;;
core_collector)
if [ -x /usr/sbin/makedumpfile ]; then
CORE_COLLECTOR=$config_val
grep -q control_d /proc/xen/capabilities 2>/dev/null
if [ $? -eq 0 ]
then
if [ ! -e /sys/kernel/vmcoreinfo ]
then
CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e's/makedumpfile/makedumpfile --xen-vmcoreinfo \/etc\/makedumpfile.config/'`
fi
else
if [ ! -e /sys/kernel/vmcoreinfo ]
then
CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e's/makedumpfile/makedumpfile -i \/etc\/makedumpfile.config/'`
fi
fi
else
echo "Cannot use the core_collector option on this arch"
cleanup_and_exit 1
fi
;;
path)
SAVE_PATH=$config_val
;;
link_delay)
LINK_DELAY=$config_val
;;
kdump_post)
KDUMP_POST=$config_val
if [ ! -x "$KDUMP_POST" ]; then
echo "$KDUMP_POST not executable or not found"
cleanup_and_exit 1
fi
bin="$bin $KDUMP_POST"
KDUMP_POST_INTERNAL=`echo $KDUMP_POST | sed -e's/\(^.*\/\)\(.*$\)/\/bin\/\2/'`
;;
kdump_pre)
KDUMP_PRE=$config_val
if [ ! -x "$KDUMP_PRE" ]; then
echo "$KDUMP_PRE not executable or not found"
cleanup_and_exit 1
fi
bin="$bin $KDUMP_PRE"
KDUMP_PRE_INTERNAL=`echo $KDUMP_PRE | sed -e's/\(^.*\/\)\(.*$\)/\/bin\/\2/'`
;;
extra_bins)
bin="$bin $config_val"
;;
extra_modules)
extra_kdump_mods="$extra_kdump_mods $config_val"
;;
blacklist)
if echo "$config_val" | grep -q "\/" ; then
echo "Do not support the directory \"$config_val\" for blacklist"
cleanup_and_exit 1
fi
blacklist_mods="$blacklist_mods $config_val"
;;
options)
;;
force_rebuild)
;;
default)
DEFAULT_ACTION=$config_val
case $DEFAULT_ACTION in
reboot|shell|mount_root_run_init)
FINAL_ACTION="reboot -f"
;;
halt)
FINAL_ACTION="halt -f"
;;
poweroff)
FINAL_ACTION="poweroff -f"
;;
*)
echo "$DEFAULT_ACTION is not a valid default option"
cleanup_and_exit 1
;;
esac
;;
disk_timeout)
DISK_TIMEOUT=$config_val
;;
debug_mem_level)
DEBUG_MEM_LEVEL=$config_val
echo "$DEBUG_MEM_LEVEL" | grep "^[0-3]$" &> /dev/null
if [ $? -ne 0 ]
then
echo "debug_mem_level is valid only for range 0-3"
cleanup_and_exit 1
fi
;;
sshkey)
if [ -f "$config_val" ]; then
# canonicalize the path
SSH_KEY_LOCATION=$(/usr/bin/readlink -m $config_val)
else
echo "WARNING: '$config_val' doesn't exist, using default value '$SSH_KEY_LOCATION'"
fi
;;
Kdump_not_supported_on_Xen_domU_guest)
cat << HERE
Since RHEL 6.3 there is limited support for kdump on full-virt Xen DomU.
This kdump.conf marker may now be removed on supported configurations.
See KCS Solution 92943 for more details.
HERE
;;
fence_kdump_nodes)
;;
fence_kdump_args)
;;
*)
IS_COMMENT=`echo $config_opt | grep "^#.*$"`
if [ -n "$IS_COMMENT" -o -z "$config_opt" ]
then
#don't process comments or blank line
continue
fi
echo $config_opt | egrep -q "ext[234]|xfs|btrfs"
if [ $? -ne 0 ]; then
echo "Unknown parameter " $config_opt
cleanup_and_exit 1
fi
USING_METHOD="filesystem"
if (echo $config_val | egrep -q "^(LABEL|UUID)="); then
# We need to "strip" the quotes in LABEL or UUID,
# otherwise it will be passed into findfs as a part of
# LABEL or UUID. Note a label name itself may contain
# spaces and quotes.
config_val=$(eval echo $config_val)
if [ -z "$config_val" ] ;then
cleanup_and_exit 1
fi
fi
DUMP_FSTYPE=$config_opt
DUMP_TARGET=$config_val
handlelvordev $config_val 0
;;
esac
done < $KDUMP_CONFIG_FILE
fi
# Include vmcore-dmesg and associated dependencies.
if [ ! -f "$DMESG_COLLECTOR" ];then
echo "Error: $DMESG_COLLECTOR is not present"
cleanup_and_exit 1
fi
bin="$bin $DMESG_COLLECTOR"
# If user did not specify a default action, set the defaults.
if [ -z "$DEFAULT_ACTION" ];then
DEFAULT_ACTION="reboot"
FINAL_ACTION="reboot -f"
fi
# if default is mount root and run init, then add root fs.
if [ "$DEFAULT_ACTION" == "mount_root_run_init" ];then
add_rootfs
fi
setup_cluster_nodes_and_options
# if no method was specified default to the currently booted filesystem
if [ -z "$USING_METHOD" ]
then
mkdir -p $SAVE_PATH
mntpoint=`df $SAVE_PATH | tail -1 | awk '{ print $NF }'`
DUMP_TARGET=`mount | awk '$3 == "'$mntpoint'" { print $1 }'`
DUMP_UUID=$(blkid -s UUID $DUMP_TARGET|cut -d ' ' -f2|tr -d '\042')
[[ "$DUMP_UUID" =~ "UUID=" ]] && DUMP_TARGET="$DUMP_UUID"
DUMP_FSTYPE=`mount | awk '$3 == "'$mntpoint'" { print $5 }'`
handlelvordev $DUMP_TARGET 0
if [ "$mntpoint" != "/" ]
then
SAVE_PATH=`echo $SAVE_PATH | sed "s,$mntpoint,,"`
fi
fi
if [ "$DUMP_FSTYPE" = "btrfs" ]
then
kdump_chk "test -f /sbin/btrfsck" "/sbin/btrfsck not found. Install package btrfs-progs and retry"
bin="$bin /sbin/btrfsck"
elif [ "$DUMP_FSTYPE" = "xfs" ]
then
:
elif [ -n "$DUMP_FSTYPE" ]
then
kdump_chk "test -f /sbin/fsck.$DUMP_FSTYPE" "fsck.$DUMP_FSTYPE not found. Install package e2fsprogs and retry."
fi
[ -n "$DUMP_FSTYPE" ] && findmodule $DUMP_FSTYPE
# If there are ISCSI devices found in dump target path, include some associated
# files and modules.
prepare_iscsi_target () {
if [ -n "$ISCSI_DEVICES" ];then
kdump_chk "test -f /sbin/iscsiadm" "Can't find /sbin/iscsiadm"
bin="$bin /sbin/iscsiadm"
kdump_chk "test -f /sbin/iscsid" "Can't find /sbin/iscsid"
bin="$bin /sbin/iscsid"
# Pack /var/lib/iscsi/* and /etc/iscsi/*
mkdir -p $MNTIMAGE/var/lib/iscsi/
cp -r /var/lib/iscsi/* $MNTIMAGE/var/lib/iscsi/
mkdir -p $MNTIMAGE/etc/iscsi/
cp -r /etc/iscsi/* $MNTIMAGE/etc/iscsi/
# iscsiadm does not like it if following does not exist.
mkdir -p $MNTIMAGE/var/lock/iscsi/
# Put list of targets in a file
mkdir -p $MNTIMAGE/etc/
echo "$ISCSI_TARGETS" | sed 's/^ //'> $MNTIMAGE/etc/iscsi_targets_to_activate
vecho "Will activate following targets: `cat $MNTIMAGE/etc/iscsi_targets_to_activate`"
fi
}
prepare_iscsi_target
inst_scsi_id() {
mkdir -p "$MNTIMAGE/lib/udev"
inst /lib/udev/scsi_id "$MNTIMAGE/lib/udev/scsi_id"
ln -s "/lib/udev/scsi_id" "$MNTIMAGE/bin/scsi_id"
}
# If there are dm multipath devices found in dump target path, include some
# associated files and modules.
prepare_multipath_target () {
local tempfile
local bindings
local libdir
local f
[ -z "$multipath_devices" ] && return
vecho "Prepare multipath related files"
kdump_chk "test -f /sbin/multipath" "Can't find /sbin/multipath"
bin="$bin /sbin/multipath"
vecho "Adding /sbin/multipath"
if [ -f /etc/multipath.conf ]; then
inst /etc/multipath.conf $MNTIMAGE/etc/multipath.conf
fi
kdump_chk "test -f /sbin/multipathd" "Can't find /sbin/multipathd"
bin="$bin /sbin/multipathd"
vecho "Adding /sbin/multipathd"
# Pack findfs and blkid also. Busybox findfs is not working well with
# multipath devices where it can return a child component device for
# a uuid instead of top level multipath device.
kdump_chk "test -f /sbin/findfs" "Can't find /sbin/findfs"
bin="$bin /sbin/findfs"
vecho "Adding /sbin/findfs"
kdump_chk "test -f /sbin/blkid" "Can't find /sbin/blkid"
bin="$bin /sbin/blkid"
vecho "Adding /sbin/blkid"
# blkid command can save blkid.tab cache file if this dir is present.
# primarily helpful for debugging.
mkdir -p $MNTIMAGE/etc/blkid/
mkdir -p $MNTIMAGE/tmp
# For kpartx command which creates device maps for disk partitions
# and creates device files
kdump_chk "test -f /sbin/dmsetup" "Can't find /sbin/dmsetup"
bin="$bin /sbin/dmsetup"
vecho "Adding /sbin/dmsetup"
kdump_chk "test -f /sbin/kpartx" "Can't find /sbin/kpartx"
bin="$bin /sbin/kpartx"
vecho "Adding /sbin/kpartx"
if ldd $(which multipath) 2>/dev/null |grep -q lib64; then
libdir="/lib64"
else
libdir="/lib"
fi
mkdir -p $MNTIMAGE/$libdir/multipath
mkdir -p $MNTIMAGE/etc/multipath
mkdir -p $MNTIMAGE/lib/udev
# /lib64/multipath/libcheckdirectio.so requires libaio
for f in \
/etc/multipath/* \
$(ls $libdir/libaio* 2>/dev/null) \
$(ls $libdir/multipath/* 2>/dev/null); do
[ -e "$f" ] && inst "$f" "$MNTIMAGE/$f"
done
}
inst_scsi_id
prepare_multipath_target
#if we are using makedumpfile here, then generate the config file
#also only build this config if we don't have vmcoreinfo on this kernel
if [ -n "$CORE_COLLECTOR" -a ! -e /sys/kernel/vmcoreinfo ]; then
RUN_KERN_VER=`uname -r`
if [ ! -f /usr/lib/debug/lib/modules/$RUN_KERN_VER/vmlinux ]
then
echo "kernel-debuginfo-$RUN_KERN_VER is not installed. You need this to use makedumpfile!"
echo "please install it and restart the kdump service"
cleanup_and_exit 1
fi
XEN_OPTS=""
grep -q control_d /proc/xen/capabilities 2>/dev/null
if [ $? -eq 0 ]
then
# This is a dom0 xen kernel so we need to add xen-syms to the
# makedumpefile config
RUN_XEN_VER=${RUN_KERN_VER%xen}
if [ ! -f /usr/lib/debug/boot/xen-syms-$RUN_XEN_VER.debug ]
then
echo "xen-syms.debug not found and is needed on this kernel to use makedumpfile!"
echo "please install it and restart the kdump service"
cleanup_and_exit 1
fi
XEN_OPTS="--xen-syms /usr/lib/debug/boot/xen-syms-$RUN_XEN_VER.debug"
/usr//sbin/makedumpfile -g $MNTIMAGE/etc/makedumpfile.config $XEN_OPTS > /dev/null 2>&1
else
/usr//sbin/makedumpfile -g $MNTIMAGE/etc/makedumpfile.config -x /usr/lib/debug/lib/modules/$RUN_KERN_VER/vmlinux > /dev/null 2>&1
fi
if [ $? != 0 ]; then
echo "could not generate makedumpfile configuration. aborting"
cleanup_and_exit 1
fi
fi
#include extra user-specified modules for kdump initrd
for n in $extra_kdump_mods; do
findmodule $n
done
# After we get all the modules, lets depsolve the list
# so that we load them in proper order
depsolve_modlist
#copy in busybox and make symlinks to its supported utilities
cp /sbin/busybox $MNTIMAGE/sbin/busybox
bin="$bin /sbin/busybox"
cd $MNTIMAGE/sbin
for i in `/sbin/busybox |
awk 'BEGIN {found=0} /.*/ { if (found) print $0 } /Currently/ {found=1}' |
sed -e's/,//g' -e's/busybox//g'`
do
ln -s busybox $MNTIMAGE/sbin/$i
done
cd - > /dev/null 2>&1
if [ -f /etc/mdadm.conf ]
then
cp /etc/mdadm.conf $MNTIMAGE/etc
bin="$bin /sbin/mdadm /sbin/mdmon"
fi
# we need the fstab file so that we can fsck properly
cp /etc/fstab $MNTIMAGE/etc/fstab
bin="$bin /sbin/fsck.ext2 /sbin/fsck.ext3 /sbin/fsck.ext4"
grep -v "^#" $KDUMP_CONFIG_FILE | cat >> $MNTIMAGE/etc/kdump.conf
if [ -f "$TMPDISKLIST" ]; then
mv $TMPDISKLIST $MNTIMAGE/etc/critical_disks
fi
#THIS IS WHERE WE GENERATE OUR ADDITINONAL UTILITIES
#Busybox doesn't have a /bin/sh applet,
#so we build a reasonable faximilie here
cat >> $MNTIMAGE/bin/sh << EOF
#!/bin/hush
#drop the -c from the command line
shift 1
#now execute the passed command
#don't exec this or $@ won't work
/bin/hush -c "\$@"
EOF
chmod 755 $MNTIMAGE/bin/sh
cat >> $MNTIMAGE/usr/share/udhcpc/default.script << EOF
#!/bin/hush
[ -z "\$1" ] && echo "Error: should be called from udhcpc" && exit 1
case "\$1" in
deconfig)
/sbin/ifconfig \$interface 0.0.0.0
;;
renew|bound)
/sbin/ifconfig \$interface \$ip netmask \$subnet
if [ -n "\$router" ] ; then
echo "deleting routers"
while route del default gw 0.0.0.0 dev \$interface 2>/dev/null ; do
:
done
for i in \$router ; do
route add default gw \$i dev \$interface
done
fi
echo -n > /etc/resolv.conf
[ -n "\$domain" ] && echo search \$domain >> /etc/resolv.conf
for i in \$dns ; do
echo adding dns \$i
echo nameserver \$i >> /etc/resolv.conf
done
;;
*)
echo "Unable to get a DHCP address retry..."
exit 1
;;
esac
exit 0
EOF
#NETWORKING SCRIPT DIRECTORIES
cat >> $MNTIMAGE/etc/network/if-pre-up.d/pre-up-script << EOF
#!/bin/hush
PATH=\$PATH:/scriptfns
. /etc/ifcfg-\$IFACE
link_delay()
{
if [ -n "\$LINK_DELAY" ]
then
echo "\$IFACE Link Up. Waiting \$LINK_DELAY Seconds"
sleep \$LINK_DELAY
echo "Continuing"
fi
}
LINK_DELAY=$LINK_DELAY
if [ "\$BUS_ID" == "Bridge" ]
then
brctl addbr \$IFACE
brctl setfd \$IFACE 1
fi
bring_up_bond_interface()
{
BOND_MASTER=\$1
if [ ! -f /sys/class/net/\$BOND_MASTER ]; then
echo +\$BOND_MASTER > /sys/class/net/bonding_masters
#this is a bond find and bring up the slaves
echo searching for slaves
find_activate_slaves \$BOND_MASTER
fi
}
if [ "\$BUS_ID" == "Bonding" ]
then
bring_up_bond_interface \$IFACE
elif [ "\$BUS_ID" == "Vlan" ]
then
case "\$IFACE" in
vlan*)
VLAN_ID=\${IFACE#vlan*}
ifup \$PHYSDEV
vconfig add \$PHYSDEV \$VLAN_ID
ip link set \$PHYSDEV.\$VLAN_ID name \$IFACE
;;
*.*)
#bring up the base interface first
BASE_DEV=\`echo \$IFACE | cut -d"." -f1\`
VLAN_ID=\`echo \$IFACE | cut -d"." -f2\`
ifup \$BASE_DEV
vconfig add \$BASE_DEV \$VLAN_ID
;;
esac
elif [ "\$BUS_ID" == "Bridge" ]
then
echo searching for bridge members
find_bridge_members \$IFACE
fi
ifconfig \$IFACE up
link_delay
exit 0
EOF
for i in `ls $MNTIMAGE/etc/network/if-pre-up.d`
do
chmod 755 $MNTIMAGE/etc/network/if-pre-up.d/$i
done
cat >> $MNTIMAGE/etc/network/if-up.d/up-script << EOF
#!/bin/hush
PATH=\$PATH:/scriptfns
if [ "\$METHOD" != "dhcp" ]
then
. /etc/ifcfg-\$IFACE
if [ -n "\$IPADDR" ]
then
ifconfig \$IFACE \$IPADDR netmask \$NETMASK
else
ifconfig \$IFACE up
fi
fi
exit 0
EOF
for i in `ls $MNTIMAGE/etc/network/if-up.d`
do
chmod 755 $MNTIMAGE/etc/network/if-up.d/$i
done
chmod 755 $MNTIMAGE/usr/share/udhcpc/default.script
# WE DONT HAVE FUNCTIONS AVAILABLE IN MSH
# SO WE IMPLEMENT THEM HERE AS scripts
SCRIPTDIR=$MNTIMAGE/scriptfns
mkdir -p $SCRIPTDIR
cat >> $SCRIPTDIR/show_memstats << EOF
#!/bin/hush
while [ \$# -gt 0 ]; do
case \$1 in
shortmem)
cat /proc/meminfo | grep -e "^MemFree" -e "^Cached" -e "^Slab"
;;
mem)
cat /proc/meminfo
;;
slab)
cat /proc/slabinfo
;;
iomem)
cat /proc/iomem
;;
esac
shift
done
echo
EOF
cat >> $SCRIPTDIR/map_interface << EOF
#!/bin/hush
if [ -e /tmp/tmpcnt ]
then
TMPCNT=\`cat /tmp/tmpcnt\`
else
TMPCNT=0
fi
#erase previously recorded map
RENAMED=""
REAL_DEV=""
HWADDR=""
NETDEV=\$1
. /etc/ifcfg-\$NETDEV
HWADDR=\`echo "\$HWADDR" | awk '{print toupper(\$1)}'\`
for j in \`ifconfig -a | awk '/.*Link encap.*/ {print \$1}'\`
do
case "\$BUS_ID" in
Bonding)
REAL_DEV=\$NETDEV
RENAMED="yes"
;;
Vlan)
case "\$NETDEV" in
vlan*)
REAL_DEV=\$NETDEV
BASE_DEV=\$PHYSDEV
REAL_BASE=\`grep "^\$BASE_DEV " /etc/iface_map | cut -d" " -f2\`
sed -i -e "s/PHYSDEV=\$BASE_DEV/PHYSDEV=\$REAL_BASE/" /etc/ifcfg-\$NETDEV
RENAMED="yes"
;;
*.*)
BASE_DEV=\`echo \$NETDEV | cut -d"." -f1\`
VLAN_ID=\`echo \$NETDEV | cut -d"." -f2\`
REAL_BASE=\`grep "^\$BASE_DEV " /etc/iface_map | cut -d" " -f2\`
REAL_DEV=\$REAL_BASE.\$VLAN_ID
NETDEV=\$BASE_DEV.\$VLAN_ID
RENAMED="yes"
;;
esac
;;
Bridge)
REAL_DEV=\$NETDEV
RENAMED="yes"
;;
*)
INFO=\`ls -l /sys/class/net/\$j/device 2>/dev/null | sed -e's/\\(.*\\/\\)\\(.*$\\)/\\2/'\`
if [ "\$INFO" == "\$BUS_ID" -a -z "\$REAL_DEV" ]
then
# Some multiport network cards report one BUS address
# for all ports. In such cases differentiate the ports by
# the MAC address if it is included in the ifcfg-ethn file
# as HWADDR.
NUM_NIC_PORTS=\`ls /sys/class/net/\$j/device/net 2>/dev/null | grep -c .\`
if [ -n "\$HWADDR" -a "\$NUM_NIC_PORTS" -gt 1 ]
then
REAL_MAC=\`ifconfig \$j | awk '/.*HWaddr.*/ {print toupper(\$5)}'\`
if [ "\$HWADDR" == "\$REAL_MAC" ]
then
REAL_DEV=\$j
RENAMED="yes"
fi
elif [ -z "\$HWADDR" -a "\$NUM_NIC_PORTS" -gt 1 ]
then
ID=\`cat /sys/class/net/\$j/dev_id\`
if [ "\$ID" == "\$DEV_ID" ]
then
REAL_DEV=\$j
RENAMED="yes"
fi
else
REAL_DEV=\$j
RENAMED="yes"
fi
fi
;;
esac
done
if [ -z "\$RENAMED" ]
then
echo "Could not find a mapping for device \$NETDEV"
exit 1
fi
#build the interface rename map
echo \$NETDEV \$REAL_DEV tmp\$TMPCNT >> /etc/iface_map
TMPCNT=\`echo \$TMPCNT 1 + p | dc\`
echo \$TMPCNT > /tmp/tmpcnt
echo mapping \$NETDEV to \$REAL_DEV
EOF
cat >> $SCRIPTDIR/rename_interfaces << EOF
#!/bin/hush
rename_iface_in_file()
{
local i=\$1
local CURRENT=\$2
local INTERIM=\$3
fname=\$(basename \$i)
case \$fname in
ifcfg-*)
# Replace iface occurences only in DEVICE lines
sed -i 's,'"\(^DEVICE=\)\"\?\$CURRENT\"\?\$"','"\1\$INTERIM"',' \$i
;;
iface_to_activate)
# Replace iface occurences in lines containg exact this iface
sed -i 's,'"^\$CURRENT\$"','"\$INTERIM"',' \$i
;;
interfaces)
# Replace iface occurences only in iface lines
sed -i 's,'"\(^iface\ \)\$CURRENT\ "','"\1\$INTERIM\ "',' \$i
;;
esac
}
MAP_COUNT=\`awk 'END{print NR}' /etc/iface_map\`
#now do all the renaming - first to temp space
for j in \`seq 1 1 \$MAP_COUNT\`
do
CURRENT=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$1}' /etc/iface_map\`
NEW=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$2}' /etc/iface_map\`
INTERIM=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$3}' /etc/iface_map\`
mv /etc/ifcfg-\$CURRENT /etc/ifcfg-\$INTERIM
for i in /etc/ifcfg-\$INTERIM /etc/iface_to_activate /etc/network/interfaces
do
rename_iface_in_file "\$i" "\$CURRENT" "\$INTERIM"
done
if [ -f /etc/network/route-static ]
then
# the double quotes lets us expand the variables
sed -i 's,'"\(.*dev\) \$CURRENT"','"\1 \$INTERIM"',g' /etc/network/route-static
fi
done
for j in \`seq 1 1 \$MAP_COUNT\`
do
CURRENT=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$1}' /etc/iface_map\`
NEW=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$2}' /etc/iface_map\`
INTERIM=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$3}' /etc/iface_map\`
mv /etc/ifcfg-\$INTERIM /etc/ifcfg-\$NEW
for i in /etc/ifcfg-\$NEW /etc/iface_to_activate /etc/network/interfaces
do
rename_iface_in_file "\$i" "\$INTERIM" "\$NEW"
done
if [ -f /etc/network/route-static ]
then
# the double quotes lets us expand the variables
sed -i 's,'"\(.*dev\) \$INTERIM"','"\1 \$NEW"',g' /etc/network/route-static
fi
IS_BOND=\`echo /etc/ifcfg-\$NEW | grep bond\`
if [ -n "\$IS_BOND" ]
then
for i in \`ls /etc/ifcfg-*\`
do
awk -v str2="MASTER=\$NEW" "{gsub(/.*MASTER=\$CURRENT.*/,str2);print}" \$i > \$i.tmp
mv \$i.tmp \$i
done
fi
done
rm -f /etc/iface_map
exit 0
EOF
cat >> $SCRIPTDIR/find_activate_slaves << EOF
#!/bin/hush
BOND_MASTER=\$1
for j in \`ls /etc/ifcfg-*\`
do
MASTER=""
touch \$j
. \$j
if [ "\$MASTER" == "\$BOND_MASTER" ]
then
dev=\`echo \$j | cut -d'-' -f2-\`
#this is a slave of the rising interface
echo enslaving \$dev to \$BOND_MASTER
echo +\$dev > /sys/class/net/\$BOND_MASTER/bonding/slaves
ifup \$dev
fi
done
EOF
cat >> $SCRIPTDIR/find_bridge_members << EOF
#!/bin/msh
for j in \`ls /etc/ifcfg-*\`
do
touch \$j
BRIDGE=""
. \$j
if [ "\$1" == "\$BRIDGE" ]
then
dev=\`echo \$j | cut -d'-' -f2-\`
ifconfig \$dev promisc
ifup \$dev
echo adding \$dev to \$1
brctl addif \$1 \$dev
fi
done
EOF
cat >> $SCRIPTDIR/add_route << EOF
#!/bin/hush
file=\$1
handle_ip_file() {
local f t type= file=\$1 proto="-4"
f=\${file##*/}
t=\${f%%-*}
type=\${t%%6}
if [ "\$type" != "\$t" ]; then
proto="-6"
fi
cat "\$file"
nr_lines=\$(wc -l < "\$file")
for i in \`seq 1 \$nr_lines\`; do
line=\$(awk -v li=\$i '{if(NR==li){print}}' \$file)
/sbin/ip \$proto \$type add \$line
done
}
if [ -f "\$file" ]; then
handle_ip_file \$file
fi
EOF
cat >> $SCRIPTDIR/monitor_dd_progress << EOF
#!/bin/hush
SRC_FILE_SIZE=\`ls -l /proc/vmcore | awk '{print \$5}'\`
BLOCK_SIZE=\$1
SRC_FILE_MB=\`dc \$SRC_FILE_SIZE 1048576 / p\`
while true
do
DD_PID=\`pidof dd\`
if [ -n "\$DD_PID" ]
then
break
fi
done
while true
do
sleep 5
if [ ! -d /proc/\$DD_PID ]
then
break
fi
kill -SIGUSR1 \$DD_PID
CURRENT_SIZE=\`tail -n 1 /tmp/dd_progress_file | sed "s/[^0-9].*//g"\`
CURRENT_MB=\`dc \$CURRENT_SIZE \$BLOCK_SIZE \* 1048576 / p\`
echo -n -e "Copied \$CURRENT_MB MB / \$SRC_FILE_MB MB\\\r"
done
rm -f /tmp/dd_progres_file
EOF
cat >> $SCRIPTDIR/monitor_scp_progress << EOF
#!/bin/hush
SRC_FILE_SIZE=\`ls -l /proc/vmcore | awk '{print \$5}'\`
LOCATION=\$1
REMOTE_FILE=\$2
SRC_FILE_MB=\`dc \$SRC_FILE_SIZE 1048576 / p\`
while true
do
SCP_PID=\`pidof scp | awk '{print \$1}'\`
if [ -n "\$SCP_PID" ]
then
break
fi
done
while true
do
sleep 5
if [ ! -d /proc/\$SCP_PID ]
then
break
fi
SSH_OUTPUT=\`ssh -q -i $SSH_KEY_LOCATION -o BatchMode=yes \$LOCATION ls -l \$REMOTE_FILE\`
REMOTE_SIZE=\`echo \$SSH_OUTPUT | awk '{print \$5}'\`
REMOTE_SIZE_MB=\`dc \$REMOTE_SIZE 1048576 / p\`
echo -n -e "Copied \$REMOTE_SIZE_MB MB / \$SRC_FILE_MB MB\\\r"
done
EOF
cat >> $SCRIPTDIR/monitor_cp_progress <<EOF
#!/bin/hush
SRC_FILE_SIZE=\`ls -l /proc/vmcore | awk '{print \$5}'\`
DST_FILE=\$1
SRC_FILE_MB=\`dc \$SRC_FILE_SIZE 1048576 / p\`
while true
do
CP_PID=\`pidof cp\`
if [ -n "\$CP_PID" ]
then
break
fi
done
while true
do
sleep 5
if [ ! -d /proc/\$CP_PID ]
then
break
fi
LS_SIZE=\`ls -l \$DST_FILE | awk '{print \$5}'\`
LS_MB=\`dc \$LS_SIZE 1048576 / p\`
echo -n -e "Copied \$LS_MB MB / \$SRC_FILE_MB MB\\\r"
done
EOF
cat >> $SCRIPTDIR/handle_event <<EOF
#!/bin/hush
FIRMWARE_DIRS="/lib/firmware"
if [ "\$ACTION" != "add" ]
then
exit 0
fi
if [ "\$SUBSYSTEM" != "firmware" ]
then
exit 0
fi
for DIR in \$FIRMWARE_DIRS; do
if [ ! -f \$DIR/\$FIRMWARE ]
then
continue
fi
echo 1 > /sys\$DEVPATH/loading
cat "\$DIR/\$FIRMWARE" > /sys\$DEVPATH/data
echo 0 > /sys\$DEVPATH/loading
exit 0
done
EOF
cat >> $SCRIPTDIR/display_mem_usage <<EOF
#!/bin/hush
FREEMEM=\`free | awk '/^ *Mem:/ {print \$4}'\`
TOTALMEM=\`free | awk '/^ *Mem:/ {print \$2}'\`
FREEPCT=\`dc \$FREEMEM \$TOTALMEM / 100 \* p\`
echo -n "Free memory/Total memory (free %): "
echo \$FREEMEM / \$TOTALMEM \( \$FREEPCT \)
EOF
# If iscsi devices are in boot path, load a script to start connections.
cat >> $SCRIPTDIR/iscsi_start <<EOF
#!/bin/hush
ISCSIDIR="/var/lib/iscsi/nodes/"
ISCSITARGETFILE="/etc/iscsi_targets_to_activate"
if [ ! -d \$ISCSIDIR ];then
exit 0
fi
if [ ! -f \$ISCSITARGETFILE ];then
exit 1
fi
/sbin/iscsid
for iscsi_target in \`cat /etc/iscsi_targets_to_activate\`;do
echo "Activating iscsi target: \$iscsi_target"
/sbin/iscsiadm -m node -T \$iscsi_target -l
done
EOF
# A script to do multipath related processing like creating device nodes.
cat >> $SCRIPTDIR/process_multipath <<EOF
#!/bin/hush
find_dev_in_sysblock () {
local majmin=\$1
find /sys/block/ -name dev | while read device; do \
echo "\$majmin" | cmp -s \$device && echo \$device ; done \
| sed -e 's,/dev$,,'
}
#Create /dev/mpath dir
mkdir -p /dev/mpath/
maj_min=\`dmsetup ls --target multipath | sed 's/.*(\([0-9]*\), \([0-9]*\)).*/\1:\2/'\`
for majmin in \$maj_min; do
sysdev=\`find_dev_in_sysblock \$majmin\`
if [ -n "\$sysdev" ]; then
major=\`echo \$majmin | cut -d ":" -f1\`
minor=\`echo \$majmin | cut -d ":" -f2\`
devnode=\`echo \$sysdev | sed 's,/sys/block/,/dev/,'\`
echo "Creating multipath node \$devnode(\$majmin), sys=\$sysdev"
mknod \$devnode b \$major \$minor
# create /dev/mpath/* soft links
mpathnode=\`dmsetup ls --target multipath | grep "(\${major}, \${minor})" | cut -f1\`
if [ -n "\$mpathnode" ];then
ln -s \$devnode /dev/mpath/\$mpathnode
fi
fi
done
EOF
install_ccw_net_init()
{
cat >> $SCRIPTDIR/ccw_net_init <<EOF
#!/bin/hush
BLACKLIST="/proc/cio_ignore"
CIO_SETTLE="/proc/cio_settle"
timedwait_for_path()
{
local somepath=\$1
local i=0
while [ \$i -lt 20 ]; do
[ -e \$somepath ] && break
sleep 0.1
i=\$((\$i + 1))
done
if [ ! -e \$somepath ]; then
echo "timed out while waiting for: \$somepath"
exit 1
fi
}
ifcfg_file=\$1
NETDEV=\`echo \$ifcfg_file | cut -d'-' -f2\`
. \$ifcfg_file
echo "ccw_net_init \$NETDEV \$ifcfg_file"
if [ -z "\$SUBCHANNELS" -o -z "\$NETTYPE" -o -z "\$DEVICE" ]; then
echo "no SUBCHANNELS,NETTYPE or DEVICE in \$ifcfg_file"
echo "dont know how to init \$NETDEV:"
cat \$ifcfg_file
exit 1
fi
#remove from blacklist
echo "free \$SUBCHANNELS" > \$BLACKLIST
if [ \$? -ne 0 ]; then
echo "Failed to free \$i from \$BLACKLIST"
fi
echo 1 > \$CIO_SETTLE
#group buses
timedwait_for_path "/sys/bus/ccwgroup/drivers/\$NETTYPE/group"
bus1=\`echo \$SUBCHANNELS | cut -d',' -f1\`
echo "\$SUBCHANNELS" > /sys/bus/ccwgroup/drivers/\$NETTYPE/group
if [ \$? -ne 0 ]; then
echo "Failed to group \$SUBCHANNELS in \$NETTYPE/group"
exit 1
fi
timedwait_for_path "/sys/bus/ccw/devices/\$bus1/group_device"
group_device=\`readlink -f /sys/bus/ccw/devices/\$bus1/group_device\`
if [ -z "\$group_device" ]; then
echo "Failed to find: /sys/bus/ccw/devices/\$bus1/group_device"
exit 1
fi
#set options
if [ -n "\$OPTIONS" ]; then
for option in "\$OPTIONS"; do
opt_name=\`echo \$option | cut -d'=' -f1\`
opt_val=\`echo \$option | cut -d'=' -f2\`
echo \$opt_val > \$group_device/\$opt_name
if [ \$? -ne 0 ]; then
echo "Failed to set option \$group_device/\$opt_name"
fi
done
fi
if [ -n "\$PORTNAME" ]; then
echo \$PORTNAME > \$group_device/portname
if [ \$? -ne 0 ]; then
echo "Failed to set PORTNAME"
fi
fi
#bring online
echo 1 > \$group_device/online
if [ \$? -ne 0 ]; then
echo "Failed to bring \$DEVICE online"
fi
#set desired interface name
ifname=\`cat \$group_device/if_name\`
if [ "\$ifname" != "\$DEVICE" ]; then
echo "\$ifname != \$DEVICE"
ip link set dev \$ifname name \$DEVICE
if [ \$? -ne 0 ]; then
echo "Failed to rename: \$ifname -> \$DEVICE"
fi
fi
EOF
chmod a+x $SCRIPTDIR/ccw_net_init
}
emit_network()
{
emit "if [ \$network_up -eq 0 ]"
emit "then"
emit " for i in \`ls /etc/ifcfg-*\`"
emit " do"
emit " NETDEV=\`echo \$i | cut -d\"-\" -f2-\`"
emit " map_interface \$NETDEV"
emit " done"
emit " rename_interfaces"
emit " for IFACE in \`cat /etc/iface_to_activate\`"
emit " do"
emit " ifup \$IFACE"
emit " IFADDR=\`ifconfig \$IFACE | awk '/inet addr/ {print \$2}' | cut -d\":\" -f 2\`"
emit " if [ -z \"\$IFADDR\" ]"
emit " then"
emit " echo \"\$IFACE failed to come up\""
emit " fi"
emit " done"
emit " add_route \"/etc/network/route-static\""
emit " network_up=1"
emit "fi"
}
#DONT ADD STUFF to SCRIPTDIR PAST HERE
for i in `ls $SCRIPTDIR/*`
do
chmod 755 $i
done
if [ -e /etc/fstab.sys ]; then
inst /etc/fstab.sys "$MNTIMAGE/etc/fstab.sys"
fi
#build a good passwd file
cat >> $MNTIMAGE/etc/passwd << EOF
root:x:0:0:root:/root:/bin/bash
EOF
default_exclude_modules="snd soundcore cfg80211 mac80211 iwl virtio_balloon\
microcode mlx4_core hyperv_fb hv_balloon"
# $1: module basename
exclude_module() {
local i
for i in $extra_kdump_mods; do
[[ "$1" =~ "$i" ]] && return 1
done
for i in $default_exclude_modules; do
[[ "$1" =~ "$i" ]] && return 0
done
return 1
}
mkdir -p $MNTIMAGE/lib/modules/$kernel
for MODULE in $MODULES; do
_base_name=$(basename $MODULE)
if exclude_module $_base_name; then
MODULES=${MODULES/$MODULE/}
continue
fi
if [ -x /usr/bin/strip ]; then
/usr/bin/strip -g $verbose $MODULE -o $MNTIMAGE/lib/modules/$kernel/$_base_name
else
cp $verbose -a $MODULE $MNTIMAGE/lib/modules/$kernel/
fi
modinfo $MODULE | awk '/^firmware:/{print $2}' | while read firmware;
do
mkdir -p $(dirname $MNTIMAGE/lib/firmware/$firmware)
# if there is a kmod firmware
if [ -e /lib/firmware/updates/$firmware ]; then
cp /lib/firmware/updates/$firmware $MNTIMAGE/lib/firmware/$firmware
else
cp /lib/firmware/$firmware $MNTIMAGE/lib/firmware/$firmware
fi
done
done
depmod -b $MNTIMAGE/
ln -sf ram1 $MNTIMAGE/dev/ram
# FIXME -- this can really go poorly with clvm or duplicate vg names.
# nash should do lvm probing for us and write its own configs.
if [ -n "$vg_list" ]; then
inst /sbin/lvm "$MNTIMAGE/bin/lvm"
bin="$bin /sbin/lvm"
if [ -f /etc/lvm/lvm.conf ]; then
cp $verbose --parents /etc/lvm/lvm.conf $MNTIMAGE/
fi
fi
mkdir -p $MNTIMAGE/$FONTDIR
inst $FONTDIR/${DEFAULT_FONT} $MNTIMAGE/$FONTDIR/
echo -n >| $RCFILE
cat >> $MNTIMAGE/init << EOF
#!/bin/hush
export PATH=$PATH:/scriptfns
# Tell libdevmapper that there is no udev
export DM_DISABLE_UDEV=1
mount -t proc /proc /proc
echo Mounting proc filesystem
echo Mounting sysfs filesystem
mount -t sysfs /sys /sys
echo "/scriptfns/handle_event" > /sys/kernel/uevent_helper
echo 1 > /proc/sys/vm/dirty_background_ratio
echo 5 > /proc/sys/vm/dirty_ratio
echo 10 > /proc/sys/vm/dirty_writeback_centisecs
echo 50 > /proc/sys/vm/dirty_expire_centisecs
echo Creating /dev
mount -o mode=0755 -t tmpfs /dev /dev
mkdir /dev/pts
mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts
mkdir /dev/shm
mkdir /dev/mapper
echo Creating initial device nodes
mknod /dev/mem c 1 1
mknod /dev/null c 1 3
mknod /dev/zero c 1 5
mknod /dev/systty c 4 0
mknod /dev/tty c 5 0
mknod /dev/console c 5 1
mknod /dev/ptmx c 5 2
mknod /dev/urandom c 1 9
mknod /dev/efirtc c 10 136
export network_up=0
setfont $FONTDIR/$DEFAULT_FONT -C /dev/console
display_mem_usage
set -o pipefail
EOF
# Some helper functions go here.
cat >> $MNTIMAGE/init << EOF
save_vmcore_dmesg_fs() {
local _dmesg_collector=\$1
local _path=\$2
local _exitcode
echo "Saving vmcore-dmesg.txt"
\$_dmesg_collector /proc/vmcore > \${_path}/vmcore-dmesg-incomplete.txt
_exitcode=\$?
if [ \$_exitcode -eq 0 ]; then
mv \${_path}/vmcore-dmesg-incomplete.txt \${_path}/vmcore-dmesg.txt
# Make sure file is on disk. There have been instances where later
# saving vmcore failed and system rebooted without sync and there
# was no vmcore-dmesg.txt available.
sync
echo "Saved vmcore-dmesg.txt"
else
echo "Saving vmcore-dmesg.txt failed"
fi
return \$_exitcode
}
save_vmcore_dmesg_ssh() {
local _dmesg_collector=\$1
local _path=\$2
local _opts="\$3"
local _location=\$4
local _exitcode
echo "Saving vmcore-dmesg.txt"
\$_dmesg_collector /proc/vmcore | ssh \$_opts \$_location "dd of=\$_path/vmcore-dmesg-incomplete.txt"
_exitcode=\$?
if [ \$_exitcode -eq 0 ]; then
ssh -q \$_opts \$_location mv \$_path/vmcore-dmesg-incomplete.txt \$_path/vmcore-dmesg.txt
echo "Saved vmcore-dmesg.txt"
else
echo "Saving vmcore-dmesg.txt failed"
fi
return \$_exitcode
}
wait_for_multipath_devices() {
local _found=0
while true
do
sleep 1
mpath_list=\$(dmsetup ls --target multipath 2> /dev/null | awk '{print \$1}')
for mpdev in $multipath_devices
do
# Also make sure the corresponding device node is created
if echo \$mpath_list | grep "\${mpdev##*/}" > /dev/null &&\
[ -e /dev/mapper/\${mpdev##*/} ]
then
_found=1
else
_found=0
break;
fi
done
[ \$_found -eq 1 ] && break
if [ -n "$DISK_TIMEOUT" -a "\$timeout_count" -ge "$DISK_TIMEOUT" ]
then
break
fi
timeout_count=\`expr \$timeout_count + 1\`
done
}
EOF
# makedumpfile creates line mode terminal friendly output when TERM=dumb is set.
if [ "$ARCH" == "s390x" ]; then
echo "export TERM=dumb" >> $MNTIMAGE/init
fi
# Linux on System z: Bring zfcp adapter and devices online
emit_zfcp_device_init() {
local DEVICE WWPN FCPLUN
emit "echo Waiting 2 seconds for driver initialization."
emit "sleep 2"
cat /etc/zfcp.conf | grep -v "^#" | tr "A-Z" "a-z" | while read DEVICE WWPN FCPLUN; do
cemit <<EOF
echo "free ${DEVICE/0x/}" > /proc/cio_ignore
echo -n 1 > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/online
echo -n 1 > /proc/cio_settle
echo -n $WWPN > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/port_add
echo -n $FCPLUN > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/$WWPN/unit_add
display_mem_usage
EOF
done
}
# Linux on System z: Bring DASD devices online
emit_dasd_device_init() {
local DEVICE OPTIONS
cat /etc/dasd.conf | grep -v "^#" | tr "A-Z" "a-z" | while read DEVICE OPTIONS; do
test -n "$DEVICE" || continue
emit "echo "free ${DEVICE/0x/}" > /proc/cio_ignore"
emit "echo -n 1 > /proc/cio_settle"
emit "echo -n 1 > /sys/bus/ccw/devices/${DEVICE/0x/}/online"
# Set device options (if specified)
test -n "$OPTIONS" || continue
set $OPTIONS
while [ -n "$1" ]; do
(
attribute="$1"
IFS="="
set $attribute
if [ $1 != "use_diag" ]; then
emit "echo $2 > /sys/bus/ccw/devices/${DEVICE/0x/}/$1"
fi
)
shift
done
done
}
# XXX really we need to openvt too, in case someting changes the
# color palette and then changes vts on fbcon before gettys start.
# (yay, fbcon bugs!)
for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 ; do
emit "mknod /dev/tty$i c 4 $i"
done
for i in 0 1 2 3 ; do
emit "mknod /dev/ttyS$i c 4 $(($i + 64))"
done
make_trace_mem "At init start" 1+:mem 2+:iomem 3+:slab
for MODULE in $MODULES; do
text=""
module=`echo $MODULE | sed "s|.*/||" | sed "s/.k\?o$//"`
# check if module is in blacklist
skipit=""
for m in $blacklist_mods; do
if [ $module == $m ]; then
skipit="skip"
break
fi
done
if [ ! -z "$skipit" ]; then
continue
fi
fullmodule=`echo $MODULE | sed "s|.*/||"`
if [ -n "$modulefile" ]
then
options=`sed -n -e "s/^options[ ][ ]*$module[ ][ ]*//p" $modulefile 2>/dev/null`
fi
if [ -n "$KDUMP_CONFIG_FILE" ]
then
options2=`sed -n -e "s/^options[ ][ ]*$module[ ][ ]*//p" $KDUMP_CONFIG_FILE 2>/dev/null`
fi
# Overwrite options if option is specified in kdump.conf
if [ -n "$options2" ]; then
options=$options2
fi
if [ -n "$options" ]; then
# hush doesn't support '(' or ')' directly, so add '\' before them
options=$(echo $options| sed 's/\([()]\)/\\\1/g')
vecho "Adding module $module$text with options $options"
else
vecho "Adding module $module$text"
fi
emit "echo \"Loading $fullmodule module\""
emit "insmod /lib/modules/$kernel/$fullmodule $options"
make_trace_mem "After module $fullmodule has been loaded" 1:shortmem 2+:mem 3+:slab
# Hack - we need a delay after loading usb-storage to give things
# time to settle down before we start looking a block devices
if [ "$module" = "usb-storage" ]; then
emit "echo Waiting 8 seconds for driver initialization."
emit "sleep 8"
fi
if [ "$module" = "zfcp" -a -f /etc/zfcp.conf ]; then
emit_zfcp_device_init
fi
done
create_rtc_dev()
{
cemit <<EOF
if [ -e /etc/rtc_device ]; then
rtc_name=\$(cat /etc/rtc_device)
for rtc in /sys/class/rtc/*; do
name=\$(cat \$rtc/name)
if [ "\$rtc_name" = "\$name" ]; then
rtc_major=\$(cat \$rtc/dev | cut -d":" -f1)
rtc_minor=\$(cat \$rtc/dev | cut -d":" -f2)
mknod /dev/rtc c \$rtc_major \$rtc_minor
break
fi
done
if [ ! -e /dev/rtc ]; then
rtc=\$(ls /sys/class/rtc | head -1)
if [ -n "\$rtc" ]; then
rtc_major=\$(cat /sys/class/rtc/\$rtc/dev | cut -d":" -f1)
rtc_minor=\$(cat /sys/class/rtc/\$rtc/dev | cut -d":" -f2)
mknod /dev/rtc c \$rtc_major \$rtc_minor
else
echo "No rtc device, skip to create rtc device"
fi
fi
fi
EOF
}
if $(ls /dev/* | grep -q /dev/rtc) && [ -d /sys/class/rtc ]; then
rtc_dev=""
if [ -e /dev/rtc ]; then
rtc_dev="/dev/rtc"
rtc_dev=$(readlink -f $rtc_dev)
elif $(ls /dev/* | grep -q /dev/rtc[0-9]*); then
rtc_dev=$(ls /dev/* | grep /dev/rtc[0-9]* | head -1)
fi
if [ -n "$rtc_dev" ]; then
rtc_dev=${rtc_dev##*/}
if [ -d /sys/class/rtc/$rtc_dev ]; then
cat /sys/class/rtc/$rtc_dev/name > $MNTIMAGE/etc/rtc_device
fi
fi
fi
create_rtc_dev
# initialise network devices
# arch specific setup before interfaces can be configured
arch_netdev_init
# Before we wait for block devices to come up, try to bring up any iscsi
# devices and bring up the networking
if [ -n "$ISCSI_DEVICES" ];then
# bring up the network
emit_network
# start iscsi
emit "iscsi_start"
fi
# Before we create our block devices, we need to make sure that we have all the needed block devices discovered
# Thats seems like a chicken and egg problem, I know, but we generated a critcal_disks list when we build this initramfs
# that tell us what devices we need to wait to see in /sys/block
# first bring DASDs online on s390
if [ -f /etc/dasd.conf ]; then
emit_dasd_device_init
fi
cat >> $MNTIMAGE/init << EOF
echo "Waiting for required block device discovery"
block_part_mknod() {
local dev_name=\$1 major minor part_name part_path
hdparm -z /dev/\$dev_name >/dev/null 2>/dev/null
for part_name in \`ls /sys/block/\$dev_name/ | grep ^\$dev_name\`
do
part_path="/sys/block/\$dev_name/\$part_name"
if [ -e "\$part_path/dev" ]; then
major=\`cat "\$part_path/dev" | cut -d":" -f1\`
minor=\`cat "\$part_path/dev" | cut -d":" -f2\`
mknod /dev/\$part_name b \$major \$minor
fi
done
}
block_mknod() {
local dev_name=\$1 major minor
[ -b /dev/\$dev_name ] && return
major=\`cat /sys/block/\$dev_name/dev | cut -d":" -f1\`
minor=\`cat /sys/block/\$dev_name/dev | cut -d":" -f2\`
echo "Creating block device \$dev_name"
mknod /dev/\$dev_name b \$major \$minor
block_part_mknod \$dev_name
}
wait_critical_disks_by_vendor_model_type() {
for i in \`cat /etc/critical_disks | awk '{print \$1}'\`
do
IDSTRING=\`grep \$i /etc/critical_disks | awk '{print \$2}'\`
COUNT=\`grep \$i /etc/critical_disks | awk '{print \$3}'\`
found=0
echo -n "Waiting for \$COUNT \$i-like device(s)..."
while true
do
for j in \`ls /sys/block\`
do
DSKSTRING=""
TMPNAME=""
if [ ! -d /sys/block/\$j/device ]
then
continue
fi
for a in "vendor" "model" "type"
do
TMPNAME=\`cat /sys/block/\$j/device/\$a 2>/dev/null \`
DSKSTRING="\$DSKSTRING \$TMPNAME"
done
DSKSTRING=\`echo \$DSKSTRING | sed -e's/ //g'\`
if [ "\$DSKSTRING" == "\$IDSTRING" ]
then
found=\$((\$found + 1))
fi
if [ \$found -ge \$COUNT ]
then
break 2
fi
done
sleep 1
if [ -n "$DISK_TIMEOUT" -a "\$timeout_count" -ge "$DISK_TIMEOUT" ]
then
break 2
fi
timeout_count=\`expr \$timeout_count + 1\`
done
echo Found
found=0
done
}
get_id_file_from_type() {
case \$1 in
scsi_ids)
echo "/etc/critical_scsi_ids"
;;
virtio_ids)
echo "/etc/virtio_ids"
;;
scm_ids)
echo "/etc/scm_ids"
;;
dasd_bus_ids)
echo "/etc/dasd_bus_ids"
;;
esac
}
#$1: id-type
#$2: device name
get_device_id() {
case \$1 in
scsi_ids)
echo \$(scsi_id --whitelisted --device=\$2 --replace-whitespace)
;;
virtio_ids)
local majmin=\$(cat /sys/block/\$(basename \$2)/dev 2>/dev/null)
cat /sys/dev/block/\$majmin/serial 2>/dev/null
;;
scm_ids)
basename \$(readlink /sys/block/\$(basename \$2)/device) 2>/dev/null
;;
dasd_bus_ids)
basename \$(readlink /sys/block/\$(basename \$2)/device) 2>/dev/null
;;
esac
}
_wait_critical_disks() {
local id_tmp=""
local nr_lines i line id
local idfile
# \$1==vendor_model_type means using old vendor/model/type sysfs attributes
# to idenfify the critical disks.
if [ "\$1" = "vendor_model_type" ]; then
wait_critical_disks_by_vendor_model_type
return \$?
fi
idfile=\$(get_id_file_from_type \$1)
#rhel6 hush does not support read line by line in a while loop, so..
nr_lines=\$(wc -l < "\$idfile")
for i in \`seq 1 \$nr_lines\`; do
id=\$(awk -v li=\$i 'NR==li {print}' \$idfile)
echo "Waiting for device with \$1: \$id ..."
while true; do
cd /sys/block
for j in *; do
[ ! -b /dev/\$j ] && block_mknod \$j
id_tmp=\$(get_device_id \$1 "/dev/\$j")
if [ "\$id" = "\$id_tmp" ]; then
echo "Found device with \$1: \$id"
break 2
fi
done
sleep 1
if [ -n "$DISK_TIMEOUT" -a "\$timeout_count" -ge "$DISK_TIMEOUT" ]
then
break 2
fi
timeout_count=\`expr \$timeout_count + 1\`
done
done
}
wait_critical_disks() {
if [ -f /etc/critical_scsi_ids ]; then
_wait_critical_disks scsi_ids
fi
if [ -f /etc/virtio_ids ]; then
_wait_critical_disks virtio_ids
fi
if [ -f /etc/scm_ids ]; then
_wait_critical_disks scm_ids
fi
if [ -f /etc/dasd_bus_ids ]; then
_wait_critical_disks dasd_bus_ids
fi
if [ -f /etc/critical_disks ]; then
_wait_critical_disks vendor_model_type
fi
}
timeout_count=0
wait_critical_disks
EOF
make_trace_mem "After block device discovery" 1:shortmem 2+:mem 3+:slab
# HACK: module loading + device creation isn't necessarily synchronous...
# this will make sure that we have all of our devices before trying
# things like RAID or LVM
emit "echo Creating Remain Block Devices"
emit "mkdir /dev/cciss"
emit "mkdir /dev/ida"
emit "for i in \`ls /sys/block\`; do"
emit " block_mknod \$i"
emit "done"
#now do any software raid devices we might have
emit "if [ -f /etc/mdadm.conf ]"
emit "then"
emit " for i in \`awk '/^ARRAY[[:space:]]/{print \$2}' /etc/mdadm.conf\`"
emit " do"
emit " MD_MIN=\`echo \$i | sed -e 's/^[^0-9]*\([0-9]\+\)$/\1/'\`"
emit " mknod \$i b 9 \$MD_MIN"
emit " done"
emit "fi"
make_trace_mem "After creation of block devices" 1:shortmem 2+:mem 3+:slab
if [ -n "$vg_list" ]; then
emit "echo Making device-mapper control node"
emit "DM_MAJ=\`cat /proc/devices | grep misc | cut -d\" \" -f2\`"
emit "DM_MIN=\`cat /proc/misc | grep device-mapper | cut -d\" \" -f2\`"
emit "mknod /dev/mapper/control b \$DM_MAJ \$DM_MIN"
fi
# multipath
if [ -n "$multipath_devices" ]; then
emit "echo Creating multipath devices"
emit "multipathd -B || multipathd"
emit "wait_for_multipath_devices"
emit "dmsetup ls --target multipath --exec 'kpartx -a -p p'"
# Create various multipath device nodes and links
#emit "process_multipath"
fi
if [ -n "$net_list" ]; then
for netdev in $net_list; do
emit "echo Bringing up $netdev"
handle_netdev $netdev
#emit $network
done
fi
if [ -n "$raiddevices" ]; then
for dev in $raiddevices; do
cp -a /dev/${dev} $MNTIMAGE/dev
emit "#need code here to set up md devs"
done
fi
emit "if [ -f /etc/mdadm.conf ]"
emit "then"
emit " mdadm -A -s"
emit "display_mem_usage"
# create nodes if there is a partition within RAID device
emit "for i in \`cat /proc/mdstat | grep active | cut -d' ' -f1\`; do"
emit " block_part_mknod \$i"
emit "done"
emit "fi"
if [ -n "$vg_list" ]; then
emit "echo Scanning logical volumes"
emit "lvm vgscan --ignorelockingfailure --mknodes"
emit "echo Activating logical volumes"
emit "lvm vgchange -a y --ignorelockingfailure"
emit "DM_NUM=0"
emit "for i in \`lvm lvs --noheadings -o lv_name,vg_name | sed -e's/ \\+/:/g'\`"
emit "do"
emit " LV=\`echo \$i | awk -F\":\" '{ print \$2 }'\`"
emit " VGRP=\`echo \$i | awk -F\":\" '{ print \$3 }'\`"
emit " mkdir -p /dev/\$VGRP"
emit " if [ ! -e /dev/\$VGRP/\$LV ]"
emit " then"
emit " ln -s /dev/mapper/\$VGRP-\$LV /dev/\$VGRP/\$LV"
emit " DM_NUM=\`echo \$DM_NUM 1 + p | dc\`"
emit " if [ -z \"\$noresume\" ]"
emit " then"
emit " /sbin/dmsetup resume /dev/mapper/\$VGRP-\$LV"
emit " fi"
emit " fi"
emit "done"
emit "display_mem_usage"
fi
make_trace_mem "After scanning logical volumes" 1:shortmem 2+:mem 3+:slab
copysshenv()
{
# Copy over the key itself.
dir=`dirname $SSH_KEY_LOCATION`
mkdir -p $MNTIMAGE/$dir
cp -a $SSH_KEY_LOCATION $MNTIMAGE/$SSH_KEY_LOCATION
# Copy over root and system-wide ssh configs.
if [ -f /root/.ssh/config ]; then
mkdir -p $MNTIMAGE/root/.ssh
chmod 700 $MNTIMAGE/root/.ssh
cp -a /root/.ssh/config $MNTIMAGE/root/.ssh/config
fi
if [ -f /etc/ssh/ssh_config ]; then
mkdir -p $MNTIMAGE/etc/ssh/
cp -a /etc/ssh/ssh_config $MNTIMAGE/etc/ssh/ssh_config
fi
# Copy over any known_hosts files that would apply.
if [ -f /root/.ssh/known_hosts ]; then
mkdir -p $MNTIMAGE/root/.ssh
chmod 700 $MNTIMAGE/root/.ssh
cp -a /root/.ssh/known_hosts $MNTIMAGE/root/.ssh/known_hosts
fi
if [ -f /etc/ssh/ssh_known_hosts ]; then
mkdir -p $MNTIMAGE/etc/ssh
cp -a /etc/ssh/ssh_known_hosts $MNTIMAGE/etc/ssh/ssh_known_hosts
fi
return 0
}
prepare_nfs4()
{
grep '^nobody:' /etc/passwd >> "$MNTIMAGE/etc/passwd"
grep '^rpc:' /etc/passwd >> "$MNTIMAGE/etc/passwd"
grep '^rpcuser:' /etc/passwd >> "$MNTIMAGE/etc/passwd"
grep '^nobody:' /etc/group >> "$MNTIMAGE/etc/group"
grep '^rpc:' /etc/group >> "$MNTIMAGE/etc/group"
mkdir -m 0755 -p "$MNTIMAGE/var/lib/nfs/rpc_pipefs"
mkdir -m 0755 -p "$MNTIMAGE/var/lib/rpcbind"
mkdir -m 0755 -p "$MNTIMAGE/var/lib/nfs/statd/sm"
for f in /etc/netconfig /etc/idmapd.conf /etc/nsswitch.conf /etc/rpc /etc/protocols /etc/services
do
[ -f "$f" ] && cp "$f" $MNTIMAGE/$f
done
bin=" $bin /sbin/mount.nfs4 /usr/sbin/rpc.idmapd /sbin/rpc.statd /sbin/rpcbind"
[ -d /usr/lib64/libnfsidmap ] && k_extras="$k_extras $(echo /usr/lib64/libnfsidmap/*)"
[ -d /usr/lib/libnfsidmap ] && k_extras="$k_extras $(echo /usr/lib/libnfsidmap/*)"
}
enter_user_space()
{
if [ "$ARCH" != "s390x" ]; then
emit "echo Resetting kernel time value to BIOS time and timezone value to UTC."
emit "cp /etc/utctime /etc/localtime"
emit "hwclock --hctosys -l"
fi
emit "display_mem_usage"
emit "echo Creating root device."
emit "#check to see if we have root= on the command line"
emit "ROOTDEV=\`cat /proc/cmdline | grep root=\`"
emit "if [ -n \"\$ROOTDEV\" ]"
emit "then"
emit " ROOTDEV=\`cat /proc/cmdline | sed 's/^.*root=//' | cut -d\" \" -f1\`"
emit " IS_LABEL=\`echo \$ROOTDEV | grep LABEL\`"
emit " IS_UUID=\`echo \$ROOTDEV | grep UUID\`"
emit " if [ -n \"\$IS_LABEL\" -o -n \"\$IS_UUID\" ] "
emit " then"
emit " ROOTDEV=\`findfs \"\$ROOTDEV\"\`"
emit " fi"
emit "else"
emit " #we need to get the root major/minor from real-root-dev"
emit " ROOT_DEV_NR=\`cat /proc/sys/kernel/real-root-dev\`"
emit " ROOT_MIN=\`echo \$ROOT_DEV_NR | sed -e's/\\([0-9a-f]\\{1,2\\}\\)\\([0-9a-f]\\{2\\}\\)/\\2/'\`"
emit " ROOT_MAJ=\`echo \$ROOT_DEV_NR | sed -e's/\\([0-9a-f]\\{1,2\\}\\)\\([0-9a-f]\\{2\\}\\)/\\1/'\`"
emit " mknod /dev/rootdev b 0x\$ROOT_MAJ 0x\$ROOT_MIN"
emit " ROOTDEV=/dev/rootdev"
emit "fi"
emit "display_mem_usage"
emit "echo Checking root filesystem."
if [ "$DUMP_FSTYPE" = "btrfs" ] ;then
emit "btrfsck \$ROOTDEV"
emit "if [ \$? != 0 ]"
emit "then"
emit " echo btrfsck \$ROOTDEV failed. Executing $FINAL_ACTION"
emit " $FINAL_ACTION"
emit "fi"
elif [ "$DUMP_FSTYPE" = "xfs" ] ;then
emit "# xfs does not need fsck"
else
emit "fsck -p \$ROOTDEV"
emit "if [ \$? -gt 1 ]"
emit "then"
emit " echo fsck \$ROOTDEV failed. Executing $FINAL_ACTION"
emit " $FINAL_ACTION"
emit "fi"
fi
emit "echo Mounting root filesystem: mount -t $rootfs \$ROOTDEV /sysroot"
emit "mount -t $rootfs \$ROOTDEV /sysroot >/dev/null 2>&1 "
emit "if [ \$? != 0 ]"
emit "then"
emit " echo unable to mount rootfs. Dropping to shell"
emit " /bin/hush"
emit "fi"
emit "#move various filesystems and prime the rootfs to boot properly"
emit "umount /proc"
emit "mount -t proc proc /sysroot/proc"
emit "umount /sys"
emit "mount -t sysfs sysfs /sysroot/sys"
emit "mount -o bind /dev /sysroot/dev"
emit "display_mem_usage"
emit "touch /sysroot/fastboot"
emit "echo Switching to new root and running init."
emit "exec switch_root /sysroot /sbin/init"
}
if [ -n "$CLUSTER_NODE_LIST" ]; then
# bring up the network
emit_network
emit "fence_kdump_send $FENCE_KDUMP_OPTS $CLUSTER_NODE_LIST &"
fi
handle_default_action() {
if [ "$DEFAULT_ACTION" == "shell" ]
then
emit "echo dropping to initramfs shell"
emit "echo exiting this shell will reboot your system"
emit "/bin/hush"
fi
case $DEFAULT_ACTION in
reboot|halt|poweroff|shell)
emit "$FINAL_ACTION"
;;
mount_root_run_init)
emit "echo Attempting to enter user-space to capture vmcore"
enter_user_space
;;
esac
}
# normalize_path <path>
# Prints the normalized path, where it removes any duplicated
# and trailing slashes.
# Example:
# $ normalize_path ///test/test//
# /test/test
normalize_path() {
shopt -q -s extglob
set -- "${1//+(\/)//}"
shopt -q -u extglob
echo "${1%/}"
}
# convert_abs_rel <from> <to>
# Prints the relative path, when creating a symlink to <to> from <from>.
# Example:
# $ convert_abs_rel /usr/bin/test /bin/test-2
# ../../bin/test-2
# $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test
convert_abs_rel() {
local __current __absolute __abssize __cursize __newpath
local -i __i __level
set -- "$(normalize_path "$1")" "$(normalize_path "$2")"
# corner case #1 - self looping link
[[ "$1" == "$2" ]] && { echo "${1##*/}"; return; }
# corner case #2 - own dir link
[[ "${1%/*}" == "$2" ]] && { echo "."; return; }
IFS="/" __current=($1)
IFS="/" __absolute=($2)
__abssize=${#__absolute[@]}
__cursize=${#__current[@]}
while [[ ${__absolute[__level]} == ${__current[__level]} ]]
do
(( __level++ ))
if (( __level > __abssize || __level > __cursize ))
then
break
fi
done
for ((__i = __level; __i < __cursize-1; __i++))
do
if ((__i > __level))
then
__newpath=$__newpath"/"
fi
__newpath=$__newpath".."
done
for ((__i = __level; __i < __abssize; __i++))
do
if [[ -n $__newpath ]]
then
__newpath=$__newpath"/"
fi
__newpath=$__newpath${__absolute[__i]}
done
echo "$__newpath"
}
# this func is used to setup fips environment.
# please place it just above the final copy of bin and libs,
# because it depends on the final collection of bin, kdump_libs
# k_extra
setup_fips()
{
bin="$bin /usr/bin/fipscheck"
#ssh+fips require libraries that aren't found with ldd
if [ -e /usr/lib/libssl.so.10 ]; then
k_extras="$k_extras /usr/lib/libssl.so.10"
fi
if [ -e /usr/lib64/libssl.so.10 ]; then
k_extras="$k_extras /usr/lib64/libssl.so.10"
fi
# find all fips .hmac files
for n in $bin $kdump_libs $k_extras; do
_hmac=${n%/*}/.${n##*/}.hmac
if [[ -e "$_hmac" ]]; then
fips_hmac="$fips_hmac $_hmac"
fi
done
}
if [ -n "$KDUMP_CONFIG_FILE" ]; then
memtotal=`cat /proc/meminfo | grep MemTotal | awk '{print $2}'`
#timezone info for date which outputs YYYY-MM-DD-hh:mm
cp /etc/localtime $MNTIMAGE/etc/localtime
if [ "$ARCH" != "s390x" ]; then
cp /usr/share/zoneinfo/UTC $MNTIMAGE/etc/utctime
cp /etc/adjtime $MNTIMAGE/etc/adjtime
emit "if grep -q UTC /etc/adjtime"
emit " then"
emit " TIME_FORMAT=-u"
emit " else"
emit " TIME_FORMAT=-l"
emit "fi"
emit "hwclock --hctosys \$TIME_FORMAT"
fi
emit "DATE=\`date +%Y-%m-%d-%T\`"
bin="$bin /sbin/dmsetup /sbin/kpartx"
if [ -z "$CORE_COLLECTOR" ] || [ "${CORE_COLLECTOR%%[[:blank:]]*}" = "makedumpfile" ]
then
bin="$bin /usr/sbin/makedumpfile"
fi
#ssh, scp require libraries that aren't found with ldd
lib=/lib && [ -d "/lib64" -a "$ARCH" != "ppc64" ] && lib=/lib64
k_extras="/$lib/libnss_compat.so.2 /$lib/libnss_files.so.2 /$lib/libnss_dns.so.2"
if [ "$ARCH" = "ppc64" ]
then
k_extras="$k_extras /lib64/libnss_compat.so.2 /lib64/libnss_files.so.2 /lib64/libnss_dns.so.2"
fi
case "$USING_METHOD" in
raw)
bin="$bin /sbin/blockdev"
#test raw partition
kdump_chk "dd if=$DUMP_TARGET count=1 of=/dev/null > /dev/null 2>&1" \
"Bad raw partition $DUMP_TARGET"
#check for available size is greater than $memtotal
available_size=$(fdisk -s $DUMP_TARGET)
if [ $available_size -lt $memtotal ]; then
echo "Warning: There might not be enough space to save a vmcore."
echo " The size of $DUMP_TARGET should be greater than $memtotal kilo bytes."
fi
#setup raw case
if [ -n "$KDUMP_PRE" ]
then
emit "$KDUMP_PRE"
emit "if [ \$? -ne 0 ]"
emit "then"
emit " echo kdump_pre script exited with non-zero status"
emit " $FINAL_ACTION"
emit "fi"
fi
emit "echo Saving to partition $DUMP_TARGET"
emit "display_mem_usage"
make_trace_mem "Before dumping vmcore" 1:shortmem 2+:mem 3+:slab
emit "monitor_dd_progress 512 &"
if [ -z "$CORE_COLLECTOR" ]
then
CORE_COLLECTOR="makedumpfile -c --message-level 1 -d 24"
else
if [ "${CORE_COLLECTOR%%[[:blank:]]*}" != "makedumpfile" ]
then
echo "Warning: specifying a non-makedumpfile core collector, you will have to recover the vmcore manually."
fi
fi
CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e's/\(^makedumpfile\)\(.*$\)/\1 -F \2/'`
emit "$CORE_COLLECTOR /proc/vmcore | dd of=$DUMP_TARGET bs=512 >> /tmp/dd_progress_file 2>&1"
emit "exitcode=\$?"
emit "if [ \$exitcode == 0 ]"
emit "then"
emit " echo -e \"\\\033[0JSaving core complete\""
emit "fi"
emit "blockdev --flushbufs $DUMP_TARGET"
make_trace_mem "After dumping vmcore" 1:shortmem 2+:mem 3+:slab
if [ -x "$KDUMP_POST" ]; then
emit "$KDUMP_POST \$exitcode"
fi
emit "[ \$exitcode == 0 ] && $FINAL_ACTION"
;;
nfs|nfs4|ssh)
#build an /etc/passwd for scp to work properly
grep "^root" /etc/passwd > $MNTIMAGE/etc/passwd
# bring up the network
emit_network
if [ -n "$OFF_SUBNET" ]
then
# we are going to a different subnet
lhost=`echo $OFF_SUBNET|awk '{print $7}'|head -n 1`
else
# we are on the same subnet
lhost=`/sbin/ip route get to $remoteip 2>&1 |awk '{print $5}'|head -n 1`
fi
emit "echo Saving to remote location $DUMP_TARGET"
if [ -z "`echo $DUMP_TARGET|grep @`" ]; then
#NFS path
if [ "$USING_METHOD" = "nfs4" ]
then
prepare_nfs4
fi
#test nfs mount and directory creation
rlocation=`echo $DUMP_TARGET | sed 's/.*:/'"$remoteip"':/'`
tmnt=`mktemp -dq`
kdump_chk "mount -t $USING_METHOD -o nolock -o tcp $rlocation $tmnt" \
"Bad NFS mount $DUMP_TARGET"
kdump_chk "mkdir -p $tmnt/$SAVE_PATH" "Read only NFS mount $DUMP_TARGET"
kdump_chk "touch $tmnt/$SAVE_PATH/testfile" "Read only NFS mount $DUMP_TARGET"
kdump_chk "rm -f $tmnt/$SAVE_PATH/testfile" "Read only NFS mount $DUMP_TARGET"
tdir=`mktemp -dqp $tmnt/$SAVE_PATH`
rc=$?
available_size=$(df -P $tdir | tail -1 | tr -s ' ' ':' | cut -d: -f5)
rm -rf $tdir
umount -f $tmnt
if [ $? != 0 ]; then
rmdir $tmnt
echo "Cannot unmount the temporary directory"
cleanup_and_exit 1
fi
rm -rf $tmnt
if [ $rc != "0" ]; then
echo "Cannot create directory in $DUMP_TARGET: $SAVE_PATH"
cleanup_and_exit 1
fi
if [ -z "$CORE_COLLECTOR" ]; then
CORE_COLLECTOR="makedumpfile -c --message-level 1 -d 24"
fi
#check for available size is greater than $memtotal
if [ $available_size -lt $memtotal ]; then
echo "Warning: There might not be enough space to save a vmcore."
echo " The size of $DUMP_TARGET should be greater than $memtotal kilo bytes."
fi
#setup nfs case
if [ -n "$KDUMP_PRE" ]
then
emit "$KDUMP_PRE"
emit "if [ \$? -ne 0 ]"
emit "then"
emit " echo kdump_pre script exited with non-zero status"
emit " $FINAL_ACTION"
emit "fi"
fi
mkdir -p $MNTIMAGE/mnt
if [ "$USING_METHOD" = "nfs4" ]
then
emit "rpcbind"
emit "[ ! -d /var/lib/nfs/rpc_pipefs/nfs ] && mount -t rpc_pipefs rpc_pipefs /var/lib/nfs/rpc_pipefs"
emit "rpc.statd && rpc.idmapd"
#the mount in busybox may not support NFS4
emit "/sbin/mount.nfs4 $rlocation /mnt -o nolock"
else
emit "mount -t $USING_METHOD -o nolock -o tcp $rlocation /mnt"
fi
emit "exitcode=\$?"
emit "if [ \$exitcode -eq 0 ]"
emit "then"
emit " mkdir -p /mnt/$SAVE_PATH/$lhost-\$DATE"
emit " exitcode=\$?"
emit " if [ \$exitcode -eq 0 ]"
emit " then"
# Save vmcore-dmesg.txt
emit " DMESG_PATH=/mnt/$SAVE_PATH/$lhost-\$DATE/"
emit " save_vmcore_dmesg_fs ${DMESG_COLLECTOR} \${DMESG_PATH}"
# Save vmcore
emit " VMCORE=/mnt/$SAVE_PATH/$lhost-\$DATE/vmcore"
emit " export VMCORE"
emit " display_mem_usage"
make_trace_mem " Before dumping vmcore" 1:shortmem 2+:mem 3+:slab
emit " monitor_cp_progress \$VMCORE-incomplete &"
emit " $CORE_COLLECTOR /proc/vmcore \$VMCORE-incomplete "
emit " exitcode=\$?"
emit " if [ \$exitcode -eq 0 ]"
emit " then"
emit " mv \$VMCORE-incomplete \$VMCORE"
emit " echo -e \"\\\033[0JSaving core complete\""
emit " fi"
emit " umount -f /mnt"
emit " fi"
emit "fi"
make_trace_mem " After dumping vmcore" 1:shortmem 2+:mem 3+:slab
if [ -x "$KDUMP_POST" ]; then
emit "$KDUMP_POST \$exitcode"
fi
emit "[ \$exitcode -eq 0 ] && $FINAL_ACTION"
else
#SSH path
#rebuild $DUMP_TARGET replacing machine name with ip address
if [ -n "$CORE_COLLECTOR" ]
then
CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e's/\(^makedumpfile\)\(.*$\)/\1 -F \2/'`
else
CORE_COLLECTOR="makedumpfile -F -c --message-level 1 -d 24"
fi
bin="$bin /usr/bin/ssh /usr/bin/scp"
rlocation=`echo $DUMP_TARGET|sed 's/@.*/@'"$rhost"'/'`
#test ssh path and directory creation
s_opts="-i $SSH_KEY_LOCATION -o BatchMode=yes"
kdump_chk "ssh -q $s_opts $rlocation mkdir -p $SAVE_PATH </dev/null" \
"Could not create $DUMP_TARGET:$SAVE_PATH, you probably need to run \"service kdump propagate\""
tdir=`ssh -q $s_opts $rlocation mktemp -dqp $SAVE_PATH </dev/null`
if [ $? != "0" ]; then
echo "$KDUMP_CONFIG_FILE: Could not create temp directory in $DUMP_TARGET:$SAVE_PATH"
cleanup_and_exit 1
fi
remote_df=`ssh -q $s_opts $rlocation df -P $tdir | tail -1`
available_size=$(echo $remote_df | tr -s ' ' '|' | cut -d\| -f4)
#check for available size is greater than $memtotal
if [ $available_size -lt $memtotal ]; then
echo "Warning: There might not be enough space to save a vmcore."
echo " The size of $rlocation:$tdir should be greater than $memtotal kilo bytes."
fi
#We do this to remove the temp directory from above
ssh -q $s_opts $rlocation rmdir $tdir
#setup ssh case, quick check to see if setup already
if [ -n "$KDUMP_PRE" ]
then
emit "$KDUMP_PRE"
emit "if [ \$? -ne 0 ]"
emit "then"
emit " echo kdump_pre script exited with non-zero status"
emit " $FINAL_ACTION"
emit "fi"
fi
if [ ! -r $MNTIMAGE/dev/urandom ]; then
copysshenv
mknod $MNTIMAGE/dev/urandom c 1 9
fi
emit "dd if=/var/lib/random-seed of=/dev/urandom 2>/dev/null"
emit "ssh -q $s_opts $rlocation mkdir $SAVE_PATH/$lhost-\$DATE"
# Save vmcore-dmesg.txt
emit "DMESG_PATH=$SAVE_PATH/$lhost-\$DATE/"
emit "save_vmcore_dmesg_ssh ${DMESG_COLLECTOR} \${DMESG_PATH} \"${s_opts}\" ${rlocation}"
# Save vmcore
emit "VMCORE=$SAVE_PATH/$lhost-\$DATE/vmcore"
emit "export VMCORE"
emit "display_mem_usage"
make_trace_mem "Before dumping vmcore" 1:shortmem 2+:mem 3+:slab
emit "monitor_scp_progress $rlocation $SAVE_PATH/$lhost-\$DATE/vmcore-incomplete &"
# We need to restrict the use of core_collector here, if
# its not makedumpfile, we need to ignore it as scp
# requires that core_collector dump to stdout
if [ "${CORE_COLLECTOR%%[[:blank:]]*}" == "makedumpfile" ]
then
emit "$CORE_COLLECTOR /proc/vmcore | ssh $s_opts $rlocation \"dd of=$SAVE_PATH/$lhost-\$DATE/vmcore-incomplete\""
else
emit "$CORE_COLLECTOR -q $s_opts /proc/vmcore $rlocation:\$VMCORE-incomplete"
fi
emit "exitcode=\$?"
emit "if [ \$exitcode == 0 ]"
emit "then"
if [ -z "$CORE_COLLECTOR" ] || [ "${CORE_COLLECTOR%%[[:blank:]]*}" != "makedumpfile" ]
then
emit " ssh -q $s_opts $rlocation mv \$VMCORE-incomplete \$VMCORE"
else
emit " ssh -q $s_opts $rlocation mv \$VMCORE-incomplete \$VMCORE.flat"
fi
emit " echo -e \"\\\033[0JSaving core complete\""
emit "fi"
make_trace_mem "After dumping vmcore" 1:shortmem 2+:mem 3+:slab
if [ -x "$KDUMP_POST" ]; then
emit "$KDUMP_POST \$exitcode"
fi
emit "[ \$exitcode -eq 0 ] && $FINAL_ACTION"
fi
;;
*)
#test filesystem and directory creation
tmnt=`mktemp -dq`
kdump_chk "mount -t $DUMP_FSTYPE $DUMP_TARGET $tmnt" "Bad mount point $DUMP_TARGET"
mkdir -p $tmnt/$SAVE_PATH
tdir=`mktemp -dqp $tmnt/$SAVE_PATH`
rc=$?
available_size=$(df $tdir | tail -1 | tr -s ' ' ':' | cut -d: -f4)
rm -rf $tdir
umount $tmnt
if [ $? != 0 ]; then
rmdir $tmnt
echo "Cannot unmount the temporary directory"
cleanup_and_exit 1
fi
rm -rf $tmnt
if [ $rc != "0" ]; then
echo "Cannot create directory in $DUMP_TARGET: $SAVE_PATH"
cleanup_and_exit 1
fi
#check for available size is greater than $memtotal
if [ $available_size -lt $memtotal ]; then
echo "Warning: There might not be enough space to save a vmcore."
echo " The size of $DUMP_TARGET should be greater than $memtotal kilo bytes."
fi
#setup filesystem case
if [ -n "$KDUMP_PRE" ]
then
emit "$KDUMP_PRE"
emit "if [ \$? -ne 0 ]"
emit "then"
emit " echo kdump_pre script exited with non-zero status"
emit " $FINAL_ACTION"
emit "fi"
fi
mkdir -p $MNTIMAGE/mnt
touch $MNTIMAGE/etc/mtab
if [ -z "$CORE_COLLECTOR" ]; then
CORE_COLLECTOR="makedumpfile -c --message-level 1 -d 24"
fi
emit "echo Saving to the local filesystem $DUMP_TARGET"
emit "DUMPDEV=$DUMP_TARGET"
emit "IS_LABEL=\`echo \$DUMPDEV | grep LABEL\`"
emit "IS_UUID=\`echo \$DUMPDEV | grep UUID\`"
emit "if [ -n \"\$IS_LABEL\" -o -n \"\$IS_UUID\" ] "
emit "then"
emit " DUMPDEV=\`findfs \"\$DUMPDEV\"\`"
emit "fi"
if [ "$DUMP_FSTYPE" = "btrfs" ] ; then
emit "btrfsck \$DUMPDEV"
emit "if [ \$? != 0 ]"
emit "then"
emit " echo btrfsck \$DUMPDEV failed. Executing default action"
handle_default_action
emit "fi"
elif [ "$DUMP_FSTYPE" = "xfs" ] ; then
emit "# xfs does not need fsck"
else
emit "fsck.$DUMP_FSTYPE -p \$DUMPDEV"
emit "if [ \$? -gt 1 ]"
emit "then"
emit " echo fsck.$DUMP_FSTYPE \$DUMPDEV failed. Executing default action"
handle_default_action
emit "fi"
fi
emit "mount -t $DUMP_FSTYPE \$DUMPDEV /mnt"
emit "if [ \$? == 0 ]"
emit "then"
emit " mkdir -p /mnt/$SAVE_PATH/127.0.0.1-\$DATE"
emit " VMCORE=/mnt/$SAVE_PATH/127.0.0.1-\$DATE/vmcore"
emit " export VMCORE"
emit " display_mem_usage"
make_trace_mem " Before dumping vmcore" 1:shortmem 2+:mem 3+:slab
if [ "$CORE_COLLECTOR" == "cp" ]; then
emit " monitor_cp_progress \$VMCORE-incomplete &"
fi
# Save vmcore-dmesg
emit " DMESG_PATH=/mnt/$SAVE_PATH/127.0.0.1-\$DATE/"
emit " save_vmcore_dmesg_fs ${DMESG_COLLECTOR} \${DMESG_PATH}"
# Save vmcore
emit " $CORE_COLLECTOR /proc/vmcore \$VMCORE-incomplete "
emit " exitcode=\$?"
emit " if [ \$exitcode == 0 ]"
emit " then"
emit " mv \$VMCORE-incomplete \$VMCORE"
emit " echo -e \"\\\033[0JSaving core complete\""
emit " fi"
emit " sync"
make_trace_mem " After dumping vmcore" 1:shortmem 2+:mem 3+:slab
if [ -x "$KDUMP_POST" ]; then
emit " $KDUMP_POST \$exitcode"
fi
emit " umount /mnt"
emit " if [ \$exitcode == 0 ]"
emit " then"
emit " $FINAL_ACTION"
emit " fi"
emit "fi"
;;
esac
#now handle the default action
handle_default_action
#find the shared libraries. this snippet taken from kboot
TEMPLDCFG=`mktemp`
for lib in `ls /etc/ld.so.conf.d/* 2>/dev/null | grep -v kernelcap`
do
echo "include " $lib >> $TEMPLDCFG
done
/sbin/ldconfig -f $TEMPLDCFG -N
kdump_libs=`for n in $bin; do
ldd "$n" 2>/dev/null | tr -s '\011' ' ' |
sed 's/.*=> *//;s/^ *//;/ *(0x.*)/s///p;d'
done | sort | uniq | sed '/^ *$/d'`
rm -f $TEMPLDCFG
if [ -f "$FIPS_FILE" ]; then
_fips_mode=$(cat $FIPS_FILE)
[ "$_fips_mode" -eq 1 ] && setup_fips
fi
#copy the binaries and their shared libraries to the archive
for n in $bin $kdump_libs $k_extras $fips_hmac; do
mkdir -p $MNTIMAGE/`dirname $n`
if [ -h $MNTIMAGE/$n ]; then
rm -f $MNTIMAGE/$n
fi
if [ -h $n ]; then
_real=$(readlink -f "$n")
mkdir -p $MNTIMAGE/`dirname $_real`
cp $_real $MNTIMAGE/$_real
ln -sfn $(convert_abs_rel $n $_real) $MNTIMAGE/$n
else
cp $n $MNTIMAGE/$n
fi
done
fi
chmod +x $RCFILE
umask 0066
(cd $MNTIMAGE; findall . | cpio --quiet -c -o) >| $IMAGE || cleanup_and_exit 1
if [ -n "$compress" ]; then
gzip -9 < $IMAGE >| $target || rc=1
else
cp -a $IMAGE $target || rc=1
fi
rm -rf $MNTIMAGE $IMAGE $TMPDISKLIST
if [ -n "$MNTPOINT" ]; then rm -rf $MNTPOINT ; fi
sync && sync
exit $rc