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@ -1,162 +0,0 @@ |
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{ config, pkgs, ... }: |
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with pkgs.lib; |
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{ |
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jobs.shutdown = |
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{ name = "shutdown"; |
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task = true; |
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stopOn = ""; # must override the default ("starting shutdown") |
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environment = { MODE = "poweroff"; }; |
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extraConfig = "console owner"; |
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script = |
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'' |
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set +e # continue in case of errors |
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${pkgs.kbd}/bin/chvt 1 |
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exec < /dev/console > /dev/console 2>&1 |
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echo "" |
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if test "$MODE" = maintenance; then |
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echo "[1;32m<<< Entering maintenance mode >>>[0m" |
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else |
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echo "[1;32m<<< System shutdown >>>[0m" |
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fi |
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echo "" |
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${config.powerManagement.powerDownCommands} |
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export PATH=${pkgs.utillinux}/bin:${pkgs.utillinux}/sbin:$PATH |
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# Do an initial sync just in case. |
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sync |
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# Kill all remaining processes except init, this one and any |
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# Upstart jobs that don't stop on the "starting shutdown" |
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# event, as these are necessary to complete the shutdown. |
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omittedPids=$(initctl list | sed -e 's/.*process \([0-9]\+\)/-o \1/;t;d') |
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#echo "saved PIDs: $omittedPids" |
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echo "sending the TERM signal to all processes..." |
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${pkgs.sysvtools}/bin/killall5 -15 $job $omittedPids |
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sleep 1 # wait briefly |
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echo "sending the KILL signal to all processes..." |
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${pkgs.sysvtools}/bin/killall5 -9 $job $omittedPids |
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# If maintenance mode is requested, start a root shell, and |
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# afterwards emit the "startup" event to bring everything |
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# back up. |
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if test "$MODE" = maintenance; then |
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echo "" |
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echo "[1;32m<<< Maintenance shell >>>[0m" |
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echo "" |
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${pkgs.shadow}/bin/login root |
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initctl emit -n startup |
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exit 0 |
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fi |
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# Write a shutdown record to wtmp while /var/log is still writable. |
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reboot --wtmp-only |
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# Set the hardware clock to the system time. |
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echo "setting the hardware clock..." |
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hwclock --systohc --utc |
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# Stop all swap devices. |
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swapoff -a |
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# Unmount file systems. We repeat this until no more file systems |
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# can be unmounted. This is to handle loopback devices, file |
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# systems mounted on other file systems and so on. |
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tryAgain=1 |
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while test -n "$tryAgain"; do |
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tryAgain= |
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failed= # list of mount points that couldn't be unmounted/remounted |
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# Get rid of loopback devices. |
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loDevices=$(losetup -a | sed 's#^\(/dev/loop[0-9]\+\).*#\1#') |
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if [ -n "$loDevices" ]; then |
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echo "removing loopback devices $loDevices..." |
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losetup -d $loDevices |
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fi |
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cp /proc/mounts /dev/.mounts # don't read /proc/mounts while it's changing |
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exec 4< /dev/.mounts |
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while read -u 4 device mp fstype options rest; do |
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# Skip various special filesystems. Non-existent |
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# mount points are typically tmpfs/aufs mounts from |
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# the initrd. |
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if [ "$mp" = /proc -o "$mp" = /sys -o "$mp" = /dev -o "$device" = "rootfs" -o "$mp" = /run -o "$mp" = /var/run -o "$mp" = /var/lock -o ! -e "$mp" ]; then continue; fi |
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echo "unmounting $mp..." |
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# We need to remount,ro before attempting any |
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# umount, or bind mounts may get confused, with |
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# the fs not being properly flushed at the end. |
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# `-i' is to workaround a bug in mount.cifs (it |
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# doesn't recognise the `remount' option, and |
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# instead mounts the FS again). |
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success= |
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if mount -t "$fstype" -n -i -o remount,ro "device" "$mp"; then success=1; fi |
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# Note: don't use `umount -f'; it's very buggy. |
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# (For instance, when applied to a bind-mount it |
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# unmounts the target of the bind-mount.) !!! But |
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# we should use `-f' for NFS. |
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if [ "$mp" != / -a "$mp" != /nix -a "$mp" != /nix/store ]; then |
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if umount -n "$mp"; then success=1; tryAgain=1; fi |
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fi |
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if [ -z "$success" ]; then failed="$failed $mp"; fi |
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done |
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done |
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# Warn about filesystems that could not be unmounted or |
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# remounted read-only. |
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if [ -n "$failed" ]; then |
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echo "[1;31mwarning:[0m the following filesystems could not be unmounted:" |
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for mp in $failed; do echo " $mp"; done |
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echo Enter 'i' to launch a shell, or wait 10 seconds to continue. |
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read -t 10 A |
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if [ "$A" == "i" ]; then |
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${pkgs.bashInteractive}/bin/bash -i < /dev/console &> /dev/console |
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fi |
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sleep 5 |
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fi |
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# Final sync. |
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sync |
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# Either reboot or power-off the system. |
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if test "$MODE" = reboot; then |
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echo "rebooting..." |
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sleep 1 |
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exec reboot -f |
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else |
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echo "powering off..." |
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sleep 1 |
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exec halt -f -p |
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fi |
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''; |
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}; |
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} |
Eelco Dolstra
12 years ago