[mirror_zfs-debian.git] / etc / init.d / zfs.gentoo.in

#!/sbin/runscript
# Copyright 1999-2011 Gentoo Foundation
# Released under the 2-clause BSD license.
# $Header: /var/cvsroot/gentoo-x86/sys-fs/zfs/files/zfs,v 0.9 2011/04/30 10:13:43 devsk Exp $

if [ -z "$init" ]; then
    # Not interactive
    grep -qE '(^|[^\\](\\\\)* )zfs=(off|no)( |$)' /proc/cmdline && exit 3
fi

depend()
{
	# Try to allow people to mix and match fstab with ZFS in a way that makes sense.
	if [ "$(mountinfo -s /)" = 'zfs' ]
	then
		before localmount
	else
		after localmount
	fi

	# bootmisc will log to /var which may be a different zfs than root.
	before bootmisc logger
	use mtab
	keyword -lxc -openvz -prefix -vserver
}

ZFS="@sbindir@/zfs"
ZPOOL="@sbindir@/zpool"
ZPOOL_CACHE="@sysconfdir@/zfs/zpool.cache"
ZFS_MODULE=zfs

checksystem() {
	if [ ! -c /dev/zfs ]; then
		einfo "Checking if ZFS modules present"
		if ! modinfo zfs > /dev/null 2>&1 ; then
			eerror "$ZFS_MODULE not found. Is the ZFS package installed?"
			return 1
		fi
	fi
	einfo "Checking if zfs userspace tools present"
		if [ ! -x $ZPOOL ]; then
			eerror "$ZPOOL binary not found."
			return 1
		fi
		if [ ! -x $ZFS ]; then
			eerror "$ZFS binary not found."
			return 1
		fi
	return 0
}

start() {
	ebegin "Starting ZFS"
	checksystem || return 1

	# Delay until all required block devices are present.
	udevadm settle

	if [ ! -c /dev/zfs ]; then
		modprobe $ZFS_MODULE
		rv=$?
		if [ $rv -ne 0 ]; then
			eerror "Failed to load the $ZFS_MODULE module, check 'dmesg|tail'."
			eend $rv
			return $rv
		fi
	fi

	# Import all pools described by the cache file, and then mount
	# all filesystem based on their properties.
	if [ -f $ZPOOL_CACHE ]; then
		einfo "Importing ZFS pools"
		# as per fedora script, import can fail if all pools are already imported
		# The check for $rv makes no sense...but someday, it will work right.
		$ZPOOL import -c $ZPOOL_CACHE -aN 2>/dev/null || true
		rv=$?
		if [ $rv -ne 0 ]; then
			eerror "Failed to import not-yet imported pools."
			eend $rv
			return $rv
		fi
	fi

	einfo "Mounting ZFS filesystems"
	$ZFS mount -a
	rv=$?
	if [ $rv -ne 0 ]; then
		eerror "Failed to mount ZFS filesystems."
		eend $rv
		return $rv
	fi

	einfo "Exporting ZFS filesystems"
	$ZFS share -a
	rv=$?
	if [ $rv -ne 0 ]; then
		eerror "Failed to export ZFS filesystems."
		eend $rv
		return $rv
	fi

	eend 0
	return 0
}

stop()
{
	ebegin "Unmounting ZFS filesystems"
	$ZFS umount -a
	rv=$?
	if [ $rv -ne 0 ]; then
		einfo "Some ZFS filesystems not unmounted"
	fi

	# Don't fail if we couldn't umount everything.  /usr might be in use.
	eend 0
	return 0
}

status()
{
	# show pool status and list
	$ZPOOL status && echo && $ZPOOL list
}
Commit	Line	Data
	1	#!/sbin/runscript
	2	# Copyright 1999-2011 Gentoo Foundation
	3	# Released under the 2-clause BSD license.
	4	# $Header: /var/cvsroot/gentoo-x86/sys-fs/zfs/files/zfs,v 0.9 2011/04/30 10:13:43 devsk Exp $
	5
	6	if [ -z "$init" ]; then
	7	# Not interactive
	8	grep -qE '(^\|[^\\](\\\\)* )zfs=(off\|no)( \|$)' /proc/cmdline && exit 3
	9	fi
	10
	11	depend()
	12	{
	13	# Try to allow people to mix and match fstab with ZFS in a way that makes sense.
	14	if [ "$(mountinfo -s /)" = 'zfs' ]
	15	then
	16	before localmount
	17	else
	18	after localmount
	19	fi
	20
	21	# bootmisc will log to /var which may be a different zfs than root.
	22	before bootmisc logger
	23	use mtab
	24	keyword -lxc -openvz -prefix -vserver
	25	}
	26
	27	ZFS="@sbindir@/zfs"
	28	ZPOOL="@sbindir@/zpool"
	29	ZPOOL_CACHE="@sysconfdir@/zfs/zpool.cache"
	30	ZFS_MODULE=zfs
	31
	32	checksystem() {
	33	if [ ! -c /dev/zfs ]; then
	34	einfo "Checking if ZFS modules present"
	35	if ! modinfo zfs > /dev/null 2>&1 ; then
	36	eerror "$ZFS_MODULE not found. Is the ZFS package installed?"
	37	return 1
	38	fi
	39	fi
	40	einfo "Checking if zfs userspace tools present"
	41	if [ ! -x $ZPOOL ]; then
	42	eerror "$ZPOOL binary not found."
	43	return 1
	44	fi
	45	if [ ! -x $ZFS ]; then
	46	eerror "$ZFS binary not found."
	47	return 1
	48	fi
	49	return 0
	50	}
	51
	52	start() {
	53	ebegin "Starting ZFS"
	54	checksystem \|\| return 1
	55
	56	# Delay until all required block devices are present.
	57	udevadm settle
	58
	59	if [ ! -c /dev/zfs ]; then
	60	modprobe $ZFS_MODULE
	61	rv=$?
	62	if [ $rv -ne 0 ]; then
	63	eerror "Failed to load the $ZFS_MODULE module, check 'dmesg\|tail'."
	64	eend $rv
	65	return $rv
	66	fi
	67	fi
	68
	69	# Import all pools described by the cache file, and then mount
	70	# all filesystem based on their properties.
	71	if [ -f $ZPOOL_CACHE ]; then
	72	einfo "Importing ZFS pools"
	73	# as per fedora script, import can fail if all pools are already imported
	74	# The check for $rv makes no sense...but someday, it will work right.
	75	$ZPOOL import -c $ZPOOL_CACHE -aN 2>/dev/null \|\| true
	76	rv=$?
	77	if [ $rv -ne 0 ]; then
	78	eerror "Failed to import not-yet imported pools."
	79	eend $rv
	80	return $rv
	81	fi
	82	fi
	83
	84	einfo "Mounting ZFS filesystems"
	85	$ZFS mount -a
	86	rv=$?
	87	if [ $rv -ne 0 ]; then
	88	eerror "Failed to mount ZFS filesystems."
	89	eend $rv
	90	return $rv
	91	fi
	92
	93	einfo "Exporting ZFS filesystems"
	94	$ZFS share -a
	95	rv=$?
	96	if [ $rv -ne 0 ]; then
	97	eerror "Failed to export ZFS filesystems."
	98	eend $rv
	99	return $rv
	100	fi
	101
	102	eend 0
	103	return 0
	104	}
	105
	106	stop()
	107	{
	108	ebegin "Unmounting ZFS filesystems"
	109	$ZFS umount -a
	110	rv=$?
	111	if [ $rv -ne 0 ]; then
	112	einfo "Some ZFS filesystems not unmounted"
	113	fi
	114
	115	# Don't fail if we couldn't umount everything. /usr might be in use.
	116	eend 0
	117	return 0
	118	}
	119
	120	status()
	121	{
	122	# show pool status and list
	123	$ZPOOL status && echo && $ZPOOL list
	124	}