openrc/init.d/mount-ro.in

#!@SBINDIR@/openrc-run
# Copyright (c) 2007-2015 The OpenRC Authors.
# See the Authors file at the top-level directory of this distribution and
# https://github.com/OpenRC/openrc/blob/HEAD/AUTHORS
#
# This file is part of OpenRC. It is subject to the license terms in
# the LICENSE file found in the top-level directory of this
# distribution and at https://github.com/OpenRC/openrc/blob/HEAD/LICENSE
# This file may not be copied, modified, propagated, or distributed
# except according to the terms contained in the LICENSE file.

description="Re-mount filesystems read-only for a clean reboot."

depend()
{
	after killprocs savecache
	keyword -docker -lxc -openvz -prefix -systemd-nspawn -vserver
}

start()
{
	local ret=0

	# Flush all pending disk writes now
	sync

	ebegin "Remounting remaining filesystems read-only"
	# We need the do_unmount function
	. "$RC_LIBEXECDIR"/sh/rc-mount.sh
	eindent

	# Bug 381783
	local rc_svcdir=$(echo $RC_SVCDIR | sed 's:/lib\(32\|64\)\?/:/lib(32|64)?/:g')

	local m="/dev|/dev/.*|/proc|/proc.*|/sys|/sys/.*|/run|${rc_svcdir}" x= fs=
	m="$m|/bin|/sbin|/lib(32|64)?|/libexec"
	if [ -e "$rc_svcdir"/usr_premounted ]; then
		m="$m|/usr"
	fi
	# RC_NO_UMOUNTS is an env var that can be set by plugins
	local IFS="$IFS:"
	for x in $no_umounts $RC_NO_UMOUNTS; do
		m="$m|$x"
	done
	m="^($m)$"
	fs=
	for x in $net_fs_list $extra_net_fs_list; do
		fs="$fs${fs:+|}$x"
	done
	[ -n "$fs" ] && fs="^($fs)$"
	do_unmount "umount -r" \
		--skip-point-regex "$m" \
		"${fs:+--skip-fstype-regex}" $fs --nonetdev
	ret=$?

	eoutdent

	eend $ret
}