3 # zfs This script will mount/umount the zfs filesystems.
5 # chkconfig: 2345 01 99
6 # description: This script will mount/umount the zfs filesystems during
7 # system boot/shutdown. Configuration of which filesystems
8 # should be mounted is handled by the zfs 'mountpoint' and
9 # 'canmount' properties. See the zfs(8) man page for details.
10 # It is also responsible for all userspace zfs services.
18 # Default-Start: 2 3 4 5
20 # Short-Description: Mount/umount the zfs filesystems
21 # Description: ZFS is an advanced filesystem designed to simplify managing
22 # and protecting your data. This service mounts the ZFS
23 # filesystems and starts all related zfs services.
26 export PATH=/usr/local/sbin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin
28 # Source function library & LSB routines
29 . /etc/rc.d/init.d/functions
36 LOCKFILE=/var/lock/subsys/$servicename
40 modinfo zfs > /dev/null 2>&1 || return 5
41 $ZPOOL > /dev/null 2>&1
42 [ $? == 127 ] && return 5
44 [ $? == 127 ] && return 5
49 cat /etc/mtab | while read -r fs mntpnt fstype opts rest ; do
50 fs=`printf '%b\n' "$fs"`
51 mntpnt=`printf '%b\n' "$mntpnt"`
52 if [ "$fstype" == "zfs" ] ; then
53 if [ "$mntpnt" == "/" ] ; then
54 mount -f -o zfsutil -t zfs --move / /removethismountpointhoweverpossible
55 umount --fake /removethismountpointhoweverpossible
57 umount --fake "$mntpnt"
59 elif echo "$fs" | grep -q "^/dev/zd" ; then
60 if [ "$mntpnt" == "/" ] ; then
61 mount -f -t "$fstype" --move / /removethismountpointhoweverpossible
62 umount --fake /removethismountpointhoweverpossible
64 umount --fake "$mntpnt"
68 cat /proc/mounts | while read -r fs mntpnt fstype opts rest ; do
69 fs=`printf '%b\n' "$fs"`
70 mntpnt=`printf '%b\n' "$mntpnt"`
71 if [ "$fstype" == "zfs" ] ; then
72 mount -f -t zfs -o zfsutil "$fs" "$mntpnt"
73 elif echo "$fs" | grep -q "^/dev/zd" ; then
74 mount -f -t "$fstype" -o "$opts" "$fs" "$mntpnt"
79 # i need a bash guru to simplify this, since this is copy and paste, but donno how
80 # to correctly dereference variable names in bash, or how to do this right
85 # first parameter is a regular expression that filters mtab
87 for fs in "${!MTAB[@]}" ; do unset MTAB["$fs"] ; done
88 while read -r fs mntpnt fstype opts blah ; do
89 fs=`printf '%b\n' "$fs"`
91 done < <(grep "$1" /etc/mtab)
95 [ "${MTAB[$1]}" != "" ]
99 # first parameter is a regular expression that filters fstab
101 for fs in "${!FSTAB[@]}" ; do unset FSTAB["$fs"] ; done
102 while read -r fs mntpnt fstype opts blah ; do
103 fs=`printf '%b\n' "$fs"`
105 done < <(grep "$1" /etc/fstab)
109 [ "${FSTAB[$1]}" != "" ]
115 if [ -f "$LOCKFILE" ] ; then return 0 ; fi
117 # check if ZFS is installed. If not, comply to FC standards and bail
119 action $"Checking if ZFS is installed: not installed" /bin/false
123 # Requires selinux policy which has not been written.
124 if [ -r "/selinux/enforce" ] &&
125 [ "$(cat /selinux/enforce)" = "1" ]; then
126 action $"SELinux ZFS policy required: " /bin/false || return 6
129 # load kernel module infrastructure
130 if ! grep -q zfs /proc/modules ; then
131 action $"Loading kernel ZFS infrastructure: " modprobe zfs || return 5
134 # fix mtab to include already-mounted fs filesystems, in case there are any
135 # we ONLY do this if mtab does not point to /proc/mounts
136 # which is the case in some systems (systemd may bring that soon)
137 if ! readlink /etc/mtab | grep -q /proc ; then
138 if grep -qE "(^/dev/zd| zfs )" /proc/mounts ; then
139 action $"Registering already-mounted ZFS filesystems and volumes: " reregister_mounts || return 150
143 if [ -f /etc/zfs/zpool.cache ] ; then
145 echo -n $"Importing ZFS pools not yet imported: "
146 $ZPOOL import -c /etc/zfs/zpool.cache -aN || true # stupid zpool will fail if all pools are already imported
148 if [ $RETVAL -ne 0 ]; then
149 failure "Importing ZFS pools not yet imported: "
152 success "Importing ZFS pools not yet imported: "
156 action $"Mounting ZFS filesystems not yet mounted: " $ZFS mount -a || return 152
158 # hack to read mounted file systems because otherwise
159 # zfs returns EPERM when a non-root user reads a mounted filesystem before root did
161 mount | grep " type zfs " | sed 's/.*on //' | sed 's/ type zfs.*$//' | while read line ; do
162 cd "$line" > /dev/null 2>&1
168 read_fstab "^/dev/zd"
170 template=$"Mounting volume %s registered in fstab: "
171 for volume in "${!FSTAB[@]}" ; do
172 if in_mtab "$volume" ; then continue ; fi
173 string=`printf "$template" "$volume"`
174 action "$string" mount "$volume"
182 if [ ! -f "$LOCKFILE" ] ; then return 0 ; fi
184 # check if ZFS is installed. If not, comply to FC standards and bail
186 action $"Checking if ZFS is installed: not installed" /bin/false
190 # the poweroff of the system takes care of this
191 # but it never unmounts the root filesystem itself
194 action $"Syncing ZFS filesystems: " sync
195 # about the only thing we can do, and then we
196 # hope that the umount process will succeed
197 # unfortunately the umount process does not dismount
198 # the root file system, there ought to be some way
199 # we can tell zfs to just flush anything in memory
200 # when a request to remount,ro comes in
202 #echo -n $"Unmounting ZFS filesystems: "
205 #if [ $RETVAL -ne 0 ]; then
215 # See how we are called
226 lsmod | grep -q zfs || RETVAL=3
227 $ZPOOL status && echo && $ZFS list || {
228 [ -f "$LOCKFILE" ] && RETVAL=2 || RETVAL=4
236 if [ -f "$LOCKFILE" ] ; then
242 echo $"Usage: $0 {start|stop|status|restart|condrestart}"