openrc/init.d/mount-ro.in

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#!@PREFIX@/sbin/runscript
# Copyright 2007-2008 Roy Marples <roy@marples.name>
# All rights reserved. Released under the 2-clause BSD license.
description="Re-mount filesytems read-only for a clean reboot."
depend()
{
need killprocs savecache
keyword noprefix noopenvz novserver
}
start()
{
# Flush all pending disk writes now
sync; sync
ebegin "Remounting remaining filesystems read-only"
# We need the do_unmount function
. "${RC_LIBDIR}"/sh/rc-mount.sh
eindent
local m="/dev|/dev/.*|/proc|/proc.*|/sys|/sys/.*|${RC_SVCDIR}" x= fs=
# RC_NO_UMOUNTS is an env var that can be set by plugins
local OIFS=$IFS SIFS=${IFS-y} IFS=$IFS
IFS=$IFS:
for x in ${no_umounts} ${RC_NO_UMOUNTS}; do
m="${m}|${x}"
done
if [ "${SIFS}" = y ]; then
IFS=$OIFS
else
unset IFS
fi
m="^(${m})$"
fs=
for x in ${net_fs_list}; do
fs="${fs}${fs:+|}${x}"
done
[ -n "${fs}" ] && fs="^(${fs})$"
do_unmount "umount -r" \
--skip-point-regex "${m}" \
${fs:+--skip-fstype-regex} ${fs} --nonetdev
eoutdent
eend $?
}