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#!/bin/bash
#
# zfs This shell script takes care of starting (mount) and
# stopping (umount) zfs shares.
#
# chkconfig: 35 60 40
# description: ZFS is a filesystem developed by Sun, ZFS is a
# combined file system and logical volume manager
# designed by Sun Microsystems. Made available to Linux
# using SPL (Solaris Porting Layer) by zfsonlinux.org.
# probe: true
ZFS="@sbindir@/zfs"
ZPOOL="@sbindir@/zpool"
ZPOOL_CACHE="@sysconfdir@/zfs/zpool.cache"
if [ -z "$init" ]; then
# Not interactive
grep -qE '(^|[^\\](\\\\)* )zfs=(off|no)( |$)' /proc/cmdline && exit 3
fi
case $1 in
start) echo "$1ing ZFS filesystems"
# Delay until all required block devices are present.
udevadm settle
if ! grep "zfs" /proc/modules > /dev/null; then
echo "ZFS kernel module not loaded yet; loading...";
if ! modprobe zfs; then
echo "Failed to load ZFS kernel module...";
exit 0;
fi
fi
if ! [ `uname -m` == "x86_64" ]; then
echo "Warning: You're not running 64bit. Currently native zfs in";
echo " linux is only supported and tested on 64bit.";
# should we break here? People doing this should know what they
# do, thus i'm not breaking here.
fi
# mount the filesystems
while IFS= read -r -d $'\n' dev; do
mdev=$(echo "$dev" | awk '{ print $1; }')
echo -n "mounting $mdev..."
if $ZFS mount $mdev; then
echo -e "done";
else
echo -e "failed";
fi
done < <($ZFS list -H);
# export the filesystems
echo -n "exporting ZFS filesystems..."
if $ZFS share -a; then
echo -e "done";
else
echo -e "failed";
fi
;;
stop) echo "$1ping ZFS filesystems"
if grep "zfs" /proc/modules > /dev/null; then
# module is loaded, so we can try to umount filesystems
while IFS= read -r -d $'\n' dev; do
mdev=$(echo "$dev" | awk '{ print $1 }');
echo -n "umounting $mdev...";
if $ZFS umount $mdev; then
echo -e "done";
else
echo -e "failed";
fi
# the next line is, because i have to reverse the
# output, otherwise it wouldn't work as it should
done < <($ZFS list -H | tac);
# and finally let's rmmod the module
rmmod zfs
else
# module not loaded, no need to umount anything
exit 0
fi
;;
restart) echo "$1ing ZFS filesystems"
$0 stop
$0 start
;;
*) echo "Usage: $0 {start|stop|restart}"
;;
esac
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