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|
#!/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 test -x /update && ls $image* > /dev/null 2>&1
then
/update ${1+"$@"}
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
|
