openrc/init.d/mount-ro.in

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#!@PREFIX@/sbin/runscript
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# Copyright (c) 2007-2009 Roy Marples <roy@marples.name>
# All rights reserved. Released under the 2-clause BSD license.
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description="Re-mount filesytems read-only for a clean reboot."
depend()
{
need killprocs savecache
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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
. "$RC_LIBEXECDIR"/sh/rc-mount.sh
eindent
local m="/dev|/dev/.*|/proc|/proc.*|/sys|/sys/.*|${RC_SVCDIR}" x= fs=
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m="$m|/bin|/sbin|/lib|/libexec"
# RC_NO_UMOUNTS is an env var that can be set by plugins
local OIFS=$IFS SIFS=${IFS-y} IFS=$IFS
IFS=$IFS:
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for x in $no_umounts $RC_NO_UMOUNTS; do
m="$m|$x"
done
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if [ "$SIFS" = y ]; then
IFS=$OIFS
else
unset IFS
fi
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m="^($m)$"
fs=
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for x in $net_fs_list; do
fs="$fs${fs:+|}$x"
done
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[ -n "$fs" ] && fs="^($fs)$"
do_unmount "umount -r" \
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--skip-point-regex "$m" \
${fs:+--skip-fstype-regex} $fs --nonetdev
eoutdent
eend $?
}