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#!/bin/sh
. /lib/init/initmethod-bbinit-functions.sh
. /lib/init/rc-once.sh
start() {
if ! mount_root_rw; then
systemctl --no-block rescue
exit 1
fi
if run_rc_once; then
rm -f /system-update
fi
systemctl daemon-reexec
sleep 1
if [ -d /var/lib/systemd/timesync ]; then
touch /var/lib/systemd/timesync/clock
chown systemd-timesync:nogroup /var/lib/systemd/timesync/clock
fi
exec "$0" umount
}
umount() {
if ! mount_root_restore; then
# remounting rw/ro during the second boot will flush anything
# left in the filesystem journal
ln -sf /etc/rc.once.d /system-update
systemctl --no-block reboot
else
if [ -e /system-update ]; then
systemctl --no-block rescue
else
systemctl --no-block default
fi
fi
}
case "$1" in
start|"")
start
;;
umount)
umount
;;
*)
echo "Usage: $0 {start|umount}" >&2
exit 1
;;
esac
exit 0
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