# /lib/rcscripts/addons/lvm-stop.sh
# $Header: /var/cvsroot/gentoo-x86/sys-fs/lvm2/files/lvm2-stop.sh-2.02.49-r1,v 1.1 2009/07/24 23:37:37 robbat2 Exp $

locking="--lock-dir /dev/.lvm/"

# Stop LVM2
if [ -x /sbin/vgchange ] && \
   [ -x /sbin/lvdisplay ] && \
   [ -x /sbin/vgdisplay ] && \
   [ -x /sbin/lvchange ] && \
   [ -f /etc/lvmtab -o -d /etc/lvm ] && \
   [ -d /proc/lvm  -o "`grep device-mapper /proc/misc 2>/dev/null`" ]
then
	einfo "Shutting down the Logical Volume Manager"
	# If these commands fail it is not currently an issue
	# as the system is going down anyway based on the current LVM 
	# functionality as described in this forum thread
	#https://www.redhat.com/archives/linux-lvm/2001-May/msg00523.html

	LOGICAL_VOLUMES=`/sbin/lvdisplay ${locking} |grep "LV Name"|sed -e 's/.*LV Name\s*\(.*\)/\1/'|sort`
	VOLUME_GROUPS=`/sbin/vgdisplay ${locking} |grep "VG Name"|sed -e 's/.*VG Name\s*\(.*\)/\1/'|sort`
	for x in ${LOGICAL_VOLUMES}
	do
		LV_IS_ACTIVE=`/sbin/lvdisplay ${locking} ${x}|grep "# open"|awk '{print $3}'`
		if [ "${LV_IS_ACTIVE}" = 0 ]
		then
			ebegin "  Shutting Down logical volume: ${x} "
			/sbin/lvchange -an ${locking} -P ${x} >/dev/null
			eend $?
		fi
	done

	for x in ${VOLUME_GROUPS}
	do
		VG_HAS_ACTIVE_LV=`/sbin/vgdisplay ${locking} ${x}|grep "Open LV"|sed -e 's/.*Open LV\s*\(.*\)/\1/'`
		if [ "${VG_HAS_ACTIVE_LV}" = 0 ]
		then
			ebegin "  Shutting Down volume group: ${x} "
			/sbin/vgchange -an ${locking} -P ${x} >/dev/null
			eend
		fi
	done

	for x in ${LOGICAL_VOLUMES}
	do
		LV_IS_ACTIVE=`/sbin/lvdisplay ${locking} ${x}|grep "# open"|sed -e 's/.*# open\s*\(.*\)/\1/'`
		if [ "${LV_IS_ACTIVE}" = 1 ]
		then
			if type mountinfo >/dev/null 2>&1; then
				ROOT_DEVICE=`mountinfo -t /`
			else
				ROOT_DEVICE=`mount | awk '{if($3 == "/" && $1 != "rootfs"){print $1}}'`
			fi

			MOUNTED_DEVICE=${x}
			[ -L ${ROOT_DEVICE} ] && ROOT_DEVICE="`/bin/readlink ${ROOT_DEVICE}`"
			[ -L ${x} ] && MOUNTED_DEVICE="`/bin/readlink ${x}`"
			if [ ! ${ROOT_DEVICE} = ${MOUNTED_DEVICE} ]
			then
				ewarn "  Unable to shutdown: ${x} "
			fi
		fi
	done
	einfo "Finished Shutting down the Logical Volume Manager"
fi

# vim:ts=4