diff options
Diffstat (limited to 'etc/init.d/zfs.redhat')
| -rw-r--r-- | etc/init.d/zfs.redhat | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/etc/init.d/zfs.redhat b/etc/init.d/zfs.redhat new file mode 100644 index 000000000..99ff80e92 --- /dev/null +++ b/etc/init.d/zfs.redhat @@ -0,0 +1,166 @@ +#!/bin/bash +# +# zfs This script will mount/umount the zfs filesystems. +# +# chkconfig: 2345 01 99 +# description: This script will mount/umount the zfs filesystems during +# system boot/shutdown. Configuration of which filesystems +# should be mounted is handled by the zfs 'mountpoint' and +# 'canmount' properties. See the zfs(8) man page for details. +# It is also responsible for all userspace zfs services. +# +### BEGIN INIT INFO +# Provides: zfs +# Required-Start: +# Required-Stop: +# Should-Start: +# Should-Stop: +# Default-Start: 2 3 4 5 +# Default-Stop: 1 +# Short-Description: Mount/umount the zfs filesystems +# Description: ZFS is an advanced filesystem designed to simplify managing +# and protecting your data. This service mounts the ZFS +# filesystems and starts all related zfs services. +### END INIT INFO + +export PATH=/usr/local/sbin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin + +# Source function library & LSB routines +. /etc/rc.d/init.d/functions + +# script variables +RETVAL=0 +ZPOOL=zpool +ZFS=zfs +servicename=zfs +LOCKFILE=/var/lock/subsys/$servicename + +# functions +zfs_installed() { + modinfo zfs > /dev/null 2>&1 || return 5 + $ZPOOL > /dev/null 2>&1 + [ $? == 127 ] && return 5 + $ZFS > /dev/null 2>&1 + [ $? == 127 ] && return 5 + return 0 +} + +# i need a bash guru to simplify this, since this is copy and paste, but donno how +# to correctly dereference variable names in bash, or how to do this right + +# first parameter is a regular expression that filters fstab +read_fstab() { + unset FSTAB + n=0 + while read -r fs mntpnt fstype opts blah ; do + fs=`printf '%b\n' "$fs"` + FSTAB[$n]=$fs + let n++ + done < <(egrep "$1" /etc/fstab) +} + +start() +{ + # Disable lockfile check + # if [ -f "$LOCKFILE" ] ; then return 0 ; fi + + # check if ZFS is installed. If not, comply to FC standards and bail + zfs_installed || { + action $"Checking if ZFS is installed: not installed" /bin/false + return 5 + } + + # Requires selinux policy which has not been written. + if [ -r "/selinux/enforce" ] && + [ "$(cat /selinux/enforce)" = "1" ]; then + action $"SELinux ZFS policy required: " /bin/false || return 6 + fi + + # load kernel module infrastructure + if ! grep -q zfs /proc/modules ; then + action $"Loading kernel ZFS infrastructure: " modprobe zfs || return 5 + fi + sleep 1 + + action $"Mounting automounted ZFS filesystems: " $ZFS mount -a || return 152 + + # Read fstab, try to mount zvols ignoring error + read_fstab "^/dev/(zd|zvol)" + template=$"Mounting volume %s registered in fstab: " + for volume in "${FSTAB[@]}" ; do + string=`printf "$template" "$volume"` + action "$string" mount "$volume" 2>/dev/null || /bin/true + done + + # touch "$LOCKFILE" +} + +stop() +{ + # Disable lockfile check + # if [ ! -f "$LOCKFILE" ] ; then return 0 ; fi + + # check if ZFS is installed. If not, comply to FC standards and bail + zfs_installed || { + action $"Checking if ZFS is installed: not installed" /bin/false + return 5 + } + + # the poweroff of the system takes care of this + # but it never unmounts the root filesystem itself + # shit + + action $"Syncing ZFS filesystems: " sync + # about the only thing we can do, and then we + # hope that the umount process will succeed + # unfortunately the umount process does not dismount + # the root file system, there ought to be some way + # we can tell zfs to just flush anything in memory + # when a request to remount,ro comes in + + #echo -n $"Unmounting ZFS filesystems: " + #$ZFS umount -a + #RETVAL=$? + #if [ $RETVAL -ne 0 ]; then + # failure + + # return 8 + #fi + #success + + rm -f "$LOCKFILE" +} + +# See how we are called +case "$1" in + start) + start + RETVAL=$? + ;; + stop) + stop + RETVAL=$? + ;; + status) + lsmod | grep -q zfs || RETVAL=3 + $ZPOOL status && echo && $ZFS list || { + [ -f "$LOCKFILE" ] && RETVAL=2 || RETVAL=4 + } + ;; + restart) + stop + start + ;; + condrestart) + if [ -f "$LOCKFILE" ] ; then + stop + start + fi + ;; + *) + echo $"Usage: $0 {start|stop|status|restart|condrestart}" + RETVAL=3 + ;; +esac + +exit $RETVAL |