1a1bebde19
find-free-devnum.fix mapfile-rebuild.fix udev-offroot Fix various issues will installation on IMSM RAID arrays, booting from those arrays, and clean shutdown when such an array is used for '/'. (bnc#752107 bnc#732294 bnc#770351) OBS-URL: https://build.opensuse.org/package/show/Base:System/mdadm?expand=0&rev=69
144 lines
2.9 KiB
Bash
144 lines
2.9 KiB
Bash
#!/bin/bash
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#%stage: softraid
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# grep needed for udev rules file.
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#%programs: /sbin/mdadm /sbin/mdmon
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#%modules: raid0 raid1 raid10 raid456
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#%if: -n "$need_mdadm"
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#
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##### MD (Software-)Raid
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##
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## This activates and waits for an MD software raid.
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##
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## Command line parameters
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## -----------------------
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##
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## need_mdadm=1 use MD raid
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##
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# load the necessary module before we initialize the raid system
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load_modules
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# Create dir for socket and pid files
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mkdir -p /run/mdadm
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[ "$mduuid" ] && md_uuid="$mduuid"
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md_major=$(sed -ne 's/\s*\([0-9]\+\)\s*md$/\1/p' /proc/devices)
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if [ -n "$md_major" -a "$md_major" = "$maj" ]; then
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md_minor="$min"
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md_dev="/dev/md$md_minor"
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fi
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# Always start md devices read/only. They will get set to rw as soon
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# as the first write occurs. This way we can guarantee that no
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# restore occurs before resume.
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if [ -f /sys/module/md_mod/parameters/start_ro ]; then
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echo 1 > /sys/module/md_mod/parameters/start_ro
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fi
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if test -n "$debug_linuxrc"; then
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mdadm="mdadm -v"
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else
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mdadm="mdadm"
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fi
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# uuid -> array name
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get_md_name()
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{
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local uuid=$1 res
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if ! test -f /etc/mdadm.conf; then
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return 1
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fi
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res=$(sed -rn "s/^ARRAY +([^ ]+).* UUID=$uuid.*/\1/p" /etc/mdadm.conf)
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case "$res" in
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"" | \<* | *=*)
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return 1
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;;
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/*)
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echo "$res"
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;;
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*)
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echo "/dev/md/$res"
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;;
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esac
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return 0
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}
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md_assemble()
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{
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local dev=$1 uuid mdconf container container_name
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if test -e "$dev"; then
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return
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fi
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case "$dev" in
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/dev/md[0-9]*p[0-9]*)
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dev=${dev%p[0-9]*}
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;;
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/dev/md*)
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;;
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/dev/disk/by-id/md-uuid-*)
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uuid=${dev#/dev/disk/by-id/md-uuid-}
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uuid=${uuid%-part*}
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dev=
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;;
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*)
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return
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esac
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if test -f /etc/mdadm.conf; then
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mdconf="-c /etc/mdadm.conf"
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local line
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if test -n "$dev"; then
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line=$(sed -rn "\:^ARRAY +$dev :p" /etc/mdadm.conf)
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else
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line=$(sed -rn "/^ARRAY .* UUID=$uuid/p" /etc/mdadm.conf)
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fi
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container=$(echo "$line" | \
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sed -rn 's/.* container=([^ ]*).*/\1/p')
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else
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mdconf="-c partitions"
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fi
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case "$container" in
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"")
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;;
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/dev/*)
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$mdadm -A $mdconf $container --offroot
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;;
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[0-9a-f]*[0-9a-f])
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container_name=$(get_md_name "$container")
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if test -z "$container_name"; then
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container_name=/dev/md/container
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fi
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$mdadm -A $mdconf --uuid="$container" "$container_name" --offroot
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;;
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*)
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echo "unrecognized container for $dev: $container"
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esac
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if test -n "$dev"; then
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$mdadm -A $mdconf "$dev" --offroot
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else
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dev=$(get_md_name "$uuid")
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if test -z "$dev"; then
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# mdadm will pick a device name
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$mdadm -A $mdconf --uuid=$uuid --offroot
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else
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$mdadm -A $mdconf --uuid=$uuid "$dev" --offroot
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fi
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fi
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}
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# run any degraded arrays assembled incrementally
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wait_for_events
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$mdadm --incremental --run --scan --offroot
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md_assemble "$resumedev"
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md_assemble "$rootdev"
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if [ -n "$md_dev" ] ; then
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md_assemble "$md_dev"
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fi
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# assemble any md devices seen by setup-md.sh at initrd build time
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for dev in $md_devs; do
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md_assemble "$dev"
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done
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wait_for_events
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