Wrap dracut scripts to 79 chars

[zfs.git] / dracut / 90zfs / parse-zfs.sh

diff --git a/dracut/90zfs/parse-zfs.sh b/dracut/90zfs/parse-zfs.sh
index ef3d058..25f2dfb 100755 (executable)
--- a/dracut/90zfs/parse-zfs.sh
+++ b/dracut/90zfs/parse-zfs.sh
@@ -1,23 +1,50 @@
+#!/bin/sh
+
+. /lib/dracut-lib.sh
+
+# Let the command line override our host id.
+spl_hostid=`getarg spl_hostid=`
+if [ "${spl_hostid}" != "" ] ; then
+       info "ZFS: Using hostid from command line: ${spl_hostid}"
+       echo "${spl_hostid}" > /etc/hostid
+elif [ -f /etc/hostid ] ; then
+       info "ZFS: Using hostid from /etc/hostid: `cat /etc/hostid`"
+else
+       warn "ZFS: No hostid found on kernel command line or /etc/hostid.  "
+       warn "ZFS: Pools may not import correctly."
+fi
+
 case "$root" in
-    zfs:FILESYSTEM=*|FILESYSTEM=*)
-       root="${root#zfs:}"
-       root="zfs:${root#FILESYSTEM=}"
-        rootfs="zfs"
-        rootok=1 ;;
-    zfs:ZFS=*|ZFS=*)
-       root="${root#zfs:}"
-       root="zfs:${root#ZFS=}"
-        rootfs="zfs"
-        rootok=1 ;;
-esac
+       ""|zfs|zfs:)
+               # We'll take root unset, root=zfs, or root=zfs:
+               # No root set, so we want to read the bootfs attribute.  We can't do
+               # that until udev settles so we'll set dummy values and hope for the
+               # best later on.
+               root="zfs:AUTO"
+               rootok=1
 
-if [ "$rootok" != "1" ] ; then
-       zpool import -aN
-       zfsbootfs=`zpool list -H -o bootfs | grep -v ^-$ -m 1`
-       if [ -n "$zfsbootfs" ] ; then
-               root="zfs:$zfsbootfs"
-               rootfs="zfs"
+               info "ZFS: Enabling autodetection of bootfs after udev settles."
+               ;;
+
+       ZFS\=*|zfs:*|zfs:FILESYSTEM\=*|FILESYSTEM\=*)
+               # root is explicit ZFS root.  Parse it now.
+               # We can handle a root=... param in any of the following formats:
+               # root=ZFS=rpool/ROOT
+               # root=zfs:rpool/ROOT
+               # root=zfs:FILESYSTEM=rpool/ROOT
+               # root=FILESYSTEM=rpool/ROOT
+
+               # Strip down to just the pool/fs
+               root="${root#zfs:}"
+               root="${root#FILESYSTEM=}"
+               root="zfs:${root#ZFS=}"
                rootok=1
-       fi
-       zpool list -H | while read fs rest ; do zpool export "$fs" ; done
-fi
+
+               info "ZFS: Set ${root} as bootfs."
+               ;;
+esac
+
+# Make sure Dracut is happy that we have a root and will wait for ZFS
+# modules to settle before mounting.
+ln -s /dev/null /dev/root 2>/dev/null
+echo '[ -e /dev/zfs ]' > $hookdir/initqueue/finished/zfs.sh