141 lines
3.6 KiB
Bash
Executable File
141 lines
3.6 KiB
Bash
Executable File
#!/bin/bash
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check() {
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[[ $debug ]] && set -x
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#kdumpctl sets this explicitly
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if [ -z "$IN_KDUMP" ] || [ ! -f /etc/kdump.conf ]
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then
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return 1
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fi
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return 0
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}
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is_lvm() { [[ $(get_fs_type /dev/block/$1) = LVM2_member ]]; }
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is_mdraid() { [[ -d "/sys/dev/block/$1/md" ]]; }
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is_btrfs() { get_fs_type /dev/block/$1 | grep -q btrfs; }
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is_mpath() {
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[ -e /sys/dev/block/$1/dm/uuid ] || return 1
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[[ $(cat /sys/dev/block/$1/dm/uuid) =~ ^mpath- ]] && return 0
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return 1
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}
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is_dmraid() { get_fs_type /dev/block/$1 |grep -v linux_raid_member | \
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grep -q _raid_member; }
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is_iscsi() (
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[[ -L /sys/dev/block/$1 ]] || return
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cd "$(readlink -f /sys/dev/block/$1)"
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until [[ -d sys || -d iscsi_session ]]; do
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cd ..
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done
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[[ -d iscsi_session ]]
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)
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pull_dracut_modules() {
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local _dev=$1
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local _is_uuid=`echo $1 | grep UUID`
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local _is_label=`echo $1 | grep LABEL`
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if [ -n "$_is_uuid" -o -n "$_is_label" ]
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then
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_dev=`findfs $1`
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fi
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. $dracutfunctions
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unset MAJOR MINOR
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eval $(udevadm info --query=env --name="$_dev" | egrep '^(MAJOR|MINOR)')
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check_block_and_slaves is_btrfs "$MAJOR:$MINOR" && echo -n "btrfs "
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check_block_and_slaves is_lvm "$MAJOR:$MINOR" && echo -n "lvm "
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check_block_and_slaves is_mdraid "$MAJOR:$MINOR" && echo -n "mdraid "
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check_block_and_slaves is_mpath "$MAJOR:$MINOR" && echo -n "multipath "
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check_block_and_slaves is_iscsi "$MAJOR:$MINOR" && echo -n "iscsi "
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check_block_and_slaves is_dmraid "$MAJOR:$MINOR" && echo -n "dmraid "
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unset MAJOR MINOR
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}
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to_udev_name() {
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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 ${dev#/dev/}
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}
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add_lvm_code() {
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local dev="/dev/$(to_udev_name $1)"
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local lv
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printf "lvm lvchange -ay --sysinit ">> $moddir/kdump-prepare.sh
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lv=$(lvm lvdisplay $dev | awk '/LV Name/ {print $3}')
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echo ${lv#/dev/} >> $moddir/kdump-prepare.sh
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}
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udevmatch() {
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case "$1" in
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UUID=????????-????-????-????-????????????|LABEL=*)
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printf 'ENV{ID_FS_%s}=="%s"' "${1%%=*}" "${1#*=}"
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;;
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UUID=*)
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printf 'ENV{ID_FS_UUID}=="%s*"' "${1#*=}"
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;;
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/dev/?*) printf 'KERNEL=="%s"' "${1#/dev/}" ;;
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esac
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printf ', SYMLINK+="'$(to_udev_name $1)'"\n'
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}
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add_udev_rules() {
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udevmatch $1 >> $moddir/90-localfs.rules
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}
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gen_new_conf () {
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if [ ! -f $2 ]
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then
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sed -ne '/^#/!p' /etc/kdump.conf > $2
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fi
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sed -i -e "s#$1#/dev/$(to_udev_name $1)#" $2
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}
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depends() {
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local _deps="base shutdown"
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while read config_opt config_val;
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do
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case "$config_opt" in
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ext[234]|xfs|btrfs|minix|raw)
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_deps="$_deps `pull_dracut_modules "$config_val"`"
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;;
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esac
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done < /etc/kdump.conf
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echo $_deps
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return 0
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}
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install() {
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echo -n "" > $moddir/90-localfs.rules
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printf '#!/bin/sh\n' > $moddir/kdump-prepare.sh
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chmod +x $moddir/kdump-prepare.sh
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while read config_opt config_val;
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do
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case "$config_opt" in
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ext[234]|xfs|btrfs|minix|raw)
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add_udev_rules $config_val
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add_lvm_code $config_val
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gen_new_conf $config_val /tmp/$$-kdump.conf
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;;
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esac
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done < /etc/kdump.conf
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inst "/bin/date" "/bin/date"
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inst "/bin/sync" "/bin/sync"
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inst "/sbin/makedumpfile" "/sbin/makedumpfile"
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inst "/tmp/$$-kdump.conf" "/etc/kdump.conf"
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inst_hook pre-pivot 01 "$moddir/kdump-prepare.sh"
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inst_hook pre-pivot 02 "$moddir/kdump.sh"
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inst_rules "$moddir/90-localfs.rules"
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}
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