121 lines
2.5 KiB
Plaintext
Executable File
121 lines
2.5 KiB
Plaintext
Executable File
#!/sbin/runscript
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# This script invalidates any stale swsusp and TuxOnIce images. It
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# searches all swap partitions on your machine, as well as TuxOnIce's
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# filewriter files (by way of the hibernate script telling it where to find
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# it).
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#
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# It should be called on boot, after mounting filesystems, but before enabling
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# swap or clearing out /var/run. Copy this into /etc/init.d/ (or the appropriate
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# place on your system), then add a symlink at the appropriate point on boot.
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# On a Debian system, you would do this:
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# update-rc.d hibernate-cleanup.sh start 31 S .
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#
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# On other SysV-based systems, you would do something like:
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# ln -s ../init.d/hibernate-cleanup.sh /etc/rcS.d/S31hibernate-cleanup.sh
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#
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### BEGIN INIT INFO
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# Provides: hibernate-cleanup
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# Default-Start: S
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# Default-Stop:
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# Required-Start:
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# Required-Stop:
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# Short-Description: invalidates stale swsusp and TuxOnIce image
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# Description: This script invalidates any stale swsusp and TuxOnIce images. It
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# searches all swap partitions on your machine, as well as
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# TuxOnIce's filewriter files (by way of the hibernate
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# script telling it where to find it).
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### END INIT INFO
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HIBERNATE_FILEWRITER_TRAIL="/var/run/TuxOnIce_filewriter_image_exists"
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clear_swap() {
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local where wason
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where=$1
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wason=
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swapoff $where 2>/dev/null && wason=yes
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mkswap $where > /dev/null || msg_status " (failed: $?)"
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[ -n "$wason" ] && swapon $where
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}
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check_swap_sig() {
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local where what type rest p c
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while read where what type rest ; do
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test "$type" = "swap" || continue
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case "$(dd if=$where bs=1 count=6 skip=4086 2>/dev/null)" in
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S1SUSP|S2SUSP|ULSUSP|pmdisk|[zZ]*)
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msg_status "$where"
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clear_swap $where
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msg_status ", "
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esac
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done < /etc/fstab
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}
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check_filewriter_sig() {
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local target
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[ -f "$HIBERNATE_FILEWRITER_TRAIL" ] || return 0
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read target < $HIBERNATE_FILEWRITER_TRAIL
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[ -f "$target" ] || return
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case "`dd \"if=$target\" bs=8 count=1 2>/dev/null`" in
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HaveImag)
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/bin/echo -ne "TuxOnIce\n\0\0" | dd "of=$target" bs=11 count=1 conv=notrunc 2>/dev/null
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msg_status -n "$target, "
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rm -f $HIBERNATE_FILEWRITER_TRAIL
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esac
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}
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do_start() {
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check_swap_sig
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check_filewriter_sig
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}
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do_stop() {
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:
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}
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do_reload() {
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:
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}
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msg_status() {
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einfon "$1"
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}
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msg() {
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einfo "$1"
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}
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extra_started_commands="reload"
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depend() {
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after modules
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before localmount
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}
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start() {
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ebegin "Invalidating stale software suspend images"
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do_start
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eend $?
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}
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stop() {
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do_stop
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}
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reload() {
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do_reload
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}
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