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80 lines
1.9 KiB
80 lines
1.9 KiB
#!/bin/sh
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# Shutdown script for initramfs. It's automatically started by
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# systemd (if you use it) on shutdown, no need for any tweaks.
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# Purpose of this script is to unmount everything cleanly.
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#
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# Author: Tomas M <http://www.linux-live.org/>
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#
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. /lib/config
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. /lib/livekitlib
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debug_start
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debug_log "Entering shutdown procedures of Linux Live Kit"
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debug_log "Called with arguments: " "$*"
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# if debug is enabled, run shell now
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debug_shell
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detach_free_loops()
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{
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losetup -a | cut -d : -f 1 | xargs -r -n 1 losetup -d
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}
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# $1=dir
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umount_all()
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{
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tac /proc/mounts | cut -d " " -f 2 | grep ^$1 | while read LINE; do
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umount $LINE 2>/dev/null
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done
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}
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# Update devs so we are aware of all active /dev/loop* files.
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# Detach loop devices which are no longer used
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debug_log "- Detaching loops"
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mdev -s
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detach_free_loops
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# do it the dirty way, simply try to umount everything to get rid of most mounts
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debug_log "- Unmounting submounts of union"
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umount_all /oldroot
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# free aufs of /run mount, and umount aufs
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debug_log "- Unmounting union itself"
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mkdir /run2
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mount --move /oldroot/run /run2
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umount /oldroot
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# remember from which device we are started, so we can eject it later
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DEVICE="$(cat /proc/mounts | grep /memory/data | grep /dev/ | cut -d " " -f 1)"
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debug_log "- going through several cycles of umounts to clear everything left"
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umount_all /run2
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detach_free_loops
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umount_all /run2
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detach_free_loops
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umount_all /run2
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# eject cdrom device if we were running from it
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for i in $(cat /proc/sys/dev/cdrom/info | grep name); do
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if [ "$DEVICE" = "/dev/$i" ]; then
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echo "[ OK ] Attemptiong to eject /dev/$i..."
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eject /dev/$i
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echo "[ OK ] CD/DVD tray will close in 6 seconds..."
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sleep 6
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eject -t /dev/$i
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fi
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done
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debug_shell
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debug_log $1 -f
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$1 -f
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debug_log reboot -f
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reboot -f
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echo We should never reach so far. Something is totally fucked up.
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echo Here you have a shell, to experiment with the universe.
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/bin/sh
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