Your Name
104 lines
1.9 KiB
Bash
104 lines
1.9 KiB
Bash
#!/bin/sh
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echo shutdown: "$@"
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export PS1="shutdown-sh# "
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# exec bin/sh
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cd /
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if [ ! -e /proc/mounts ]
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then
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mkdir -p /proc
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mount proc /proc -tproc
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umount_proc=1
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else
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umount_proc=
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fi
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# Remove an empty oldroot, that means we are not invoked from systemd-shutdown
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rmdir /oldroot 2>/dev/null
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# Move /oldroot/run to /mnt in case it has the underlying rofs loop mounted.
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# Ordered before /oldroot the overlay is unmounted before the loop mount
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mkdir -p /mnt
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mount --move /oldroot/run /mnt
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set -x
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awk '/oldroot|mnt/ { print $2 }' < /proc/mounts | sort -r | while IFS= read -r f
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do
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umount "$f"
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done
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set +x
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update=/run/initramfs/update
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image=/run/initramfs/image-
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wdt="-t 1 -T 5"
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wdrst="-T 15"
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if ls $image* > /dev/null 2>&1
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then
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if test -x $update
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then
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if test -c /dev/watchdog
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then
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echo Pinging watchdog ${wdt+with args $wdt}
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# shellcheck disable=SC2086
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watchdog $wdt -F /dev/watchdog &
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wd=$!
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else
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wd=
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fi
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$update --clean-saved-files
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remaining=$(ls $image*)
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if test -n "$remaining"
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then
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echo 1>&2 "Flash update failed to flash these images:"
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echo 1>&2 "$remaining"
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else
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echo "Flash update completed."
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fi
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if test -n "$wd"
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then
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kill -9 $wd
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if test -n "$wdrst"
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then
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echo "Resetting watchdog timeouts to $wdrst"
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watchdog "$wdrst" -F /dev/watchdog &
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sleep 1
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# Kill the watchdog daemon, setting a timeout
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# for the remaining shutdown work
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kill -9 $!
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fi
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fi
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else
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echo 1>&2 "Flash update requested but $update program missing!"
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fi
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fi
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echo Remaining mounts:
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cat /proc/mounts
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test "$umount_proc" && umount /proc && rmdir /proc
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# tcsattr(tty, TIOCDRAIN, mode) to drain tty messages to console
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test -t 1 && stty cooked 0<&1
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# Execute the command systemd told us to ...
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if test -d /oldroot && test "$1"
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then
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if test "$1" = kexec
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then
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$1 -f -e
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else
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$1 -f
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fi
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fi
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echo "Execute ${1-reboot} -f if all unmounted ok, or exec /init"
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export PS1=shutdown-sh#\
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exec /bin/sh
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