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#! /bin/sh
### BEGIN INIT INFO
# Provides: umountroot
# Required-Start:
# Required-Stop:
# Should-Stop: halt reboot kexec
# Default-Start:
# Default-Stop: 0 6
# Short-Description: Mount the root and /usr filesystems read-only.
### END INIT INFO
PATH=/sbin:/bin
. /lib/init/vars.sh
. /lib/lsb/init-functions
remount_ro () {
[ "$VERBOSE" = no ] || log_action_begin_msg "Mounting $1 filesystem read-only"
MOUNT_FORCE_OPT=
[ "$(uname -s)" = "GNU/kFreeBSD" ] && MOUNT_FORCE_OPT=-f
# This:
# mount -n -o remount,ro /
# will act on a bind mount of / if there is one.
# See #339023 and the comment in checkroot.sh
mount $MOUNT_FORCE_OPT -n -o remount,ro -t dummytype dummydev $2 2>/dev/null \
|| mount $MOUNT_FORCE_OPT -n -o remount,ro dummydev $2 2>/dev/null \
|| mount $MOUNT_FORCE_OPT -n -o remount,ro $2
ES=$?
[ "$VERBOSE" = no ] || log_action_end_msg $ES
}
do_stop () {
remount_ro root /
if mountpoint -q /usr; then
remount_ro /usr /usr
fi
}
case "$1" in
start|status)
# No-op
;;
restart|reload|force-reload)
echo "Error: argument '$1' not supported" >&2
exit 3
;;
stop)
do_stop
;;
*)
echo "Usage: $0 start|stop" >&2
exit 3
;;
esac
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