165 lines
3.8 KiB
Bash
Executable File
165 lines
3.8 KiB
Bash
Executable File
#!/bin/sh
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. /lib/dracut-lib.sh
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set -x
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KDUMP_PATH="/var/crash"
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CORE_COLLECTOR="makedumpfile -d 31 -c"
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DEFAULT_ACTION="dump_rootfs"
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DATEDIR=`date +%d.%m.%y-%T`
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DUMP_INSTRUCTION=""
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do_default_action()
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{
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wait_for_loginit
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$DEFAULT_ACTION
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}
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add_dump_code()
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{
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if [ -z "$DUMP_INSTRUCTION" ]
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then
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DUMP_INSTRUCTION="$1"
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else
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DUMP_INSTRUCTION="$DUMP_INSTRUCTION && $1"
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fi
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}
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add_to_fstab()
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{
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local _mp
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while read dev mp fs opts rest; do
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if [ "$dev" = "$1" ]; then
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_mp=$NEWROOT$mp
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echo "$dev $NEWROOT$mp $fs ${opts},rw $rest"
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break
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fi
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done < "$NEWROOT/etc/fstab" >> /etc/fstab
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echo "$_mp"
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}
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to_dev_name()
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{
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local dev="$1"
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case "$dev" in
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UUID=*)
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dev=`blkid -U "${dev#UUID=}"`
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;;
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LABEL=*)
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dev=`blkid -L "${dev#LABEL=}"`
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;;
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esac
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echo $dev
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}
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dump_localfs()
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{
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local _dev=`to_dev_name $1`
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local _mp=`add_to_fstab $_dev`
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if [ $_mp = "$NEWROOT/" ] || [ $_mp = "$NEWROOT" ]
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then
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mount -o remount,rw $_mp || return 1
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else
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mount $_mp || return 1
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fi
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mkdir -p $_mp/$KDUMP_PATH/$DATEDIR
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$CORE_COLLECTOR /proc/vmcore $_mp/$KDUMP_PATH/$DATEDIR/vmcore || return 1
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umount $_mp || return 1
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return 0
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}
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dump_raw()
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{
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CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e's/\(^makedumpfile\)\(.*$\)/\1 -F \2/'`
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$CORE_COLLECTOR /proc/vmcore | dd of=$1 bs=512 || return 1
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return 0
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}
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dump_rootfs()
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{
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mount -o remount,rw $NEWROOT/ || return 1
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mkdir -p $NEWROOT/$KDUMP_PATH/$DATEDIR
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$CORE_COLLECTOR /proc/vmcore $NEWROOT/$KDUMP_PATH/$DATEDIR/vmcore || return 1
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sync
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reboot -f
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return 0
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}
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dump_nfs()
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{
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mount -o remount,rw $NEWROOT/ || return 1
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[ -d $NEWROOT/mnt ] || mkdir -p $NEWROOT/mnt
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mount -o nolock -o tcp -t nfs $1 $NEWROOT/mnt/
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mkdir -p $NEWROOT/mnt/$KDUMP_PATH/$DATEDIR || return 1
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$CORE_COLLECTOR /proc/vmcore $NEWROOT/mnt/$KDUMP_PATH/$DATEDIR/vmcore || return 1
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umount $NEWROOT/mnt/ || return 1
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return 0
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}
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dump_ssh()
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{
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ssh -q -o BatchMode=yes -o StrictHostKeyChecking=yes $1 mkdir -p $KDUMP_PATH/$DATEDIR || return 1
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scp -q -o BatchMode=yes -o StrictHostKeyChecking=yes /proc/vmcore "$1:$KDUMP_PATH/$DATEDIR" || return 1
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return 0
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}
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read_kdump_conf()
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{
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local conf_file="/etc/kdump.conf"
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if [ -f "$conf_file" ]; then
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while read config_opt config_val;
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do
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case "$config_opt" in
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ext[234]|xfs|btrfs|minix)
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add_dump_code "dump_localfs $config_val || do_default_action"
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;;
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raw)
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add_dump_code "dump_raw $config_val || do_default_action"
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;;
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path)
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KDUMP_PATH="$config_val"
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;;
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core_collector)
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CORE_COLLECTOR="$config_val"
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;;
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net)
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if [ -n "$(echo $config_val | grep @)" ]
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then
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add_dump_code "dump_ssh $config_val || do_default_action"
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else
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add_dump_code "dump_nfs $config_val || do_default_action"
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fi
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;;
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default)
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case $config_val in
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shell)
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DEFAULT_ACTION="sh -i -l"
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;;
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reboot)
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DEFAULT_ACTION="reboot -f"
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;;
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halt)
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DEFAULT_ACTION="halt -f"
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;;
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poweroff)
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DEFAULT_ACTION="poweroff -f"
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;;
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esac
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;;
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esac
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done < $conf_file
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fi
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}
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read_kdump_conf
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if [ -n "$DUMP_INSTRUCTION" ]
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then
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eval "$DUMP_INSTRUCTION && reboot -f"
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else
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dump_rootfs
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fi
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