mirror of
https://git.proxmox.com/git/mirror_zfs.git
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6f582dc708
This workaround was introduced to workaround issue #164. This
issue was fixed by commit 5f35b19 so the workaround can be safely
dropped from both the zfs.fedora and zfs.gentoo init scripts.
239 lines
6.2 KiB
Bash
239 lines
6.2 KiB
Bash
#!/bin/bash
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#
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# zfs This script will mount/umount the zfs filesystems.
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#
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# chkconfig: 2345 01 99
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# description: This script will mount/umount the zfs filesystems during
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# system boot/shutdown. Configuration of which filesystems
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# should be mounted is handled by the zfs 'mountpoint' and
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# 'canmount' properties. See the zfs(8) man page for details.
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# It is also responsible for all userspace zfs services.
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#
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### BEGIN INIT INFO
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# Provides: zfs
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# Required-Start:
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# Required-Stop:
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# Should-Start:
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# Should-Stop:
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# Default-Start: 2 3 4 5
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# Default-Stop: 1
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# Short-Description: Mount/umount the zfs filesystems
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# Description: ZFS is an advanced filesystem designed to simplify managing
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# and protecting your data. This service mounts the ZFS
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# filesystems and starts all related zfs services.
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### END INIT INFO
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export PATH=/usr/local/sbin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin
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# Source function library & LSB routines
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. /etc/rc.d/init.d/functions
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# script variables
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RETVAL=0
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ZPOOL=zpool
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ZFS=zfs
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servicename=zfs
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LOCKFILE=/var/lock/subsys/$servicename
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# functions
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zfs_installed() {
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modinfo zfs > /dev/null 2>&1 || return 5
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$ZPOOL > /dev/null 2>&1
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[ $? == 127 ] && return 5
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$ZFS > /dev/null 2>&1
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[ $? == 127 ] && return 5
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return 0
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}
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reregister_mounts() {
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cat /etc/mtab | while read -r fs mntpnt fstype opts rest ; do
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fs=`printf '%b\n' "$fs"`
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mntpnt=`printf '%b\n' "$mntpnt"`
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if [ "$fstype" == "zfs" ] ; then
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if [ "$mntpnt" == "/" ] ; then
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mount -f -o zfsutil -t zfs --move / /removethismountpointhoweverpossible
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umount --fake /removethismountpointhoweverpossible
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else
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umount --fake "$mntpnt"
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fi
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elif echo "$fs" | grep -q "^/dev/zd" ; then
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if [ "$mntpnt" == "/" ] ; then
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mount -f -t "$fstype" --move / /removethismountpointhoweverpossible
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umount --fake /removethismountpointhoweverpossible
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else
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umount --fake "$mntpnt"
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fi
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fi
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done
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cat /proc/mounts | while read -r fs mntpnt fstype opts rest ; do
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fs=`printf '%b\n' "$fs"`
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mntpnt=`printf '%b\n' "$mntpnt"`
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if [ "$fstype" == "zfs" ] ; then
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mount -f -t zfs -o zfsutil "$fs" "$mntpnt"
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elif echo "$fs" | grep -q "^/dev/zd" ; then
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mount -f -t "$fstype" -o "$opts" "$fs" "$mntpnt"
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fi
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done
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}
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# i need a bash guru to simplify this, since this is copy and paste, but donno how
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# to correctly dereference variable names in bash, or how to do this right
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declare -A MTAB
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declare -A FSTAB
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# first parameter is a regular expression that filters mtab
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read_mtab() {
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for fs in "${!MTAB[@]}" ; do unset MTAB["$fs"] ; done
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while read -r fs mntpnt fstype opts blah ; do
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fs=`printf '%b\n' "$fs"`
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MTAB["$fs"]=$mntpnt
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done < <(grep "$1" /etc/mtab)
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}
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in_mtab() {
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[ "${MTAB[$1]}" != "" ]
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return $?
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}
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# first parameter is a regular expression that filters fstab
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read_fstab() {
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for fs in "${!FSTAB[@]}" ; do unset FSTAB["$fs"] ; done
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while read -r fs mntpnt fstype opts blah ; do
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fs=`printf '%b\n' "$fs"`
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FSTAB["$fs"]=$mntpnt
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done < <(grep "$1" /etc/fstab)
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}
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in_fstab() {
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[ "${FSTAB[$1]}" != "" ]
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return $?
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}
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start()
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{
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if [ -f "$LOCKFILE" ] ; then return 0 ; fi
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# check if ZFS is installed. If not, comply to FC standards and bail
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zfs_installed || {
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action $"Checking if ZFS is installed: not installed" /bin/false
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return 5
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}
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# Requires selinux policy which has not been written.
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if [ -r "/selinux/enforce" ] &&
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[ "$(cat /selinux/enforce)" = "1" ]; then
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action $"SELinux ZFS policy required: " /bin/false || return 6
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fi
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# load kernel module infrastructure
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if ! grep -q zfs /proc/modules ; then
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action $"Loading kernel ZFS infrastructure: " modprobe zfs || return 5
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fi
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# fix mtab to include already-mounted fs filesystems, in case there are any
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# we ONLY do this if mtab does not point to /proc/mounts
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# which is the case in some systems (systemd may bring that soon)
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if ! readlink /etc/mtab | grep -q /proc ; then
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if grep -qE "(^/dev/zd| zfs )" /proc/mounts ; then
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action $"Registering already-mounted ZFS filesystems and volumes: " reregister_mounts || return 150
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fi
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fi
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if [ -f /etc/zfs/zpool.cache ] ; then
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echo -n $"Importing ZFS pools not yet imported: "
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$ZPOOL import -c /etc/zfs/zpool.cache -aN || true # stupid zpool will fail if all pools are already imported
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RETVAL=$?
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if [ $RETVAL -ne 0 ]; then
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failure "Importing ZFS pools not yet imported: "
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return 151
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fi
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success "Importing ZFS pools not yet imported: "
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fi
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action $"Mounting ZFS filesystems not yet mounted: " $ZFS mount -a || return 152
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read_mtab "^/dev/zd"
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read_fstab "^/dev/zd"
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template=$"Mounting volume %s registered in fstab: "
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for volume in "${!FSTAB[@]}" ; do
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if in_mtab "$volume" ; then continue ; fi
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string=`printf "$template" "$volume"`
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action "$string" mount "$volume"
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done
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touch "$LOCKFILE"
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}
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stop()
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{
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if [ ! -f "$LOCKFILE" ] ; then return 0 ; fi
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# check if ZFS is installed. If not, comply to FC standards and bail
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zfs_installed || {
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action $"Checking if ZFS is installed: not installed" /bin/false
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return 5
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}
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# the poweroff of the system takes care of this
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# but it never unmounts the root filesystem itself
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# shit
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action $"Syncing ZFS filesystems: " sync
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# about the only thing we can do, and then we
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# hope that the umount process will succeed
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# unfortunately the umount process does not dismount
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# the root file system, there ought to be some way
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# we can tell zfs to just flush anything in memory
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# when a request to remount,ro comes in
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#echo -n $"Unmounting ZFS filesystems: "
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#$ZFS umount -a
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#RETVAL=$?
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#if [ $RETVAL -ne 0 ]; then
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# failure
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# return 8
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#fi
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#success
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rm -f "$LOCKFILE"
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}
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# See how we are called
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case "$1" in
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start)
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start
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RETVAL=$?
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;;
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stop)
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stop
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RETVAL=$?
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;;
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status)
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lsmod | grep -q zfs || RETVAL=3
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$ZPOOL status && echo && $ZFS list || {
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[ -f "$LOCKFILE" ] && RETVAL=2 || RETVAL=4
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}
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;;
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restart)
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stop
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start
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;;
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condrestart)
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if [ -f "$LOCKFILE" ] ; then
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stop
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start
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fi
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;;
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*)
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echo $"Usage: $0 {start|stop|status|restart|condrestart}"
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RETVAL=3
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;;
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esac
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exit $RETVAL
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