| #!/bin/sh |
| |
| echo shutdown: "$@" |
| |
| export PS1=shutdown-sh#\ |
| # exec bin/sh |
| |
| cd / |
| if [ ! -e /proc/mounts ] |
| then |
| mkdir -p /proc |
| mount proc /proc -tproc |
| umount_proc=1 |
| else |
| umount_proc= |
| fi |
| |
| # Remove an empty oldroot, that means we are not invoked from systemd-shutdown |
| rmdir /oldroot 2>/dev/null |
| |
| # Move /oldroot/run to /mnt in case it has the underlying rofs loop mounted. |
| # Ordered before /oldroot the overlay is unmounted before the loop mount |
| mkdir -p /mnt |
| mount --move /oldroot/run /mnt |
| |
| set -x |
| for f in $( awk '/oldroot|mnt/ { print $2 }' < /proc/mounts | sort -r ) |
| do |
| umount $f |
| done |
| set +x |
| |
| image=/run/initramfs/image- |
| if test -s /run/fw_env -a -c /run/mtd:u-boot-env -a ! -e ${image}u-boot-env && |
| ! cmp /run/mtd:u-boot-env /run/fw_env |
| then |
| ln -sn /run/fw_env ${image}u-boot-env |
| fi |
| |
| if ls $image* > /dev/null 2>&1 |
| then |
| if test -x /update |
| then |
| /update |
| else |
| echo 1>&2 "Flash update requested but /update program missing!" |
| fi |
| fi |
| |
| echo Remaining mounts: |
| cat /proc/mounts |
| |
| test "$umount_proc" && umount /proc && rmdir /proc |
| |
| # tcsattr(tty, TIOCDRAIN, mode) to drain tty messages to console |
| test -t 1 && stty cooked 0<&1 |
| |
| # Execute the command systemd told us to ... |
| if test -d /oldroot && test "$1" |
| then |
| if test "$1" = kexec |
| then |
| $1 -f -e |
| else |
| $1 -f |
| fi |
| fi |
| |
| |
| echo "Execute ${1-reboot} -f if all unounted ok, or exec /init" |
| |
| export PS1=shutdown-sh#\ |
| exec /bin/sh |