Move dracut directory to contrib

The dracut code is analogous to the initramfs code and as such
it should be located in the contrib with initramfs for consistency.

Signed-off-by: Brian Behlendorf <[email protected]>

1 files changed, 59 insertions, 0 deletions

diff --git a/contrib/dracut/90zfs/parse-zfs.sh.in b/contrib/dracut/90zfs/parse-zfs.sh.in
new file mode 100755
index 000000000..c305c7821
--- /dev/null
+++ b/contrib/dracut/90zfs/parse-zfs.sh.in
@@ -0,0 +1,59 @@
+#!/bin/sh
+
+. /lib/dracut-lib.sh
+
+# Let the command line override our host id.
+spl_hostid=`getarg spl_hostid=`
+if [ -n "${spl_hostid}" ] ; then
+	info "ZFS: Using hostid from command line: ${spl_hostid}"
+	AA=`echo ${spl_hostid} | cut -b 1,2`
+	BB=`echo ${spl_hostid} | cut -b 3,4`
+	CC=`echo ${spl_hostid} | cut -b 5,6`
+	DD=`echo ${spl_hostid} | cut -b 7,8`
+	printf "\x${DD}\x${CC}\x${BB}\x${AA}" >/etc/hostid
+elif [ -f "/etc/hostid" ] ; then
+	info "ZFS: Using hostid from /etc/hostid: `hostid`"
+else
+	warn "ZFS: No hostid found on kernel command line or /etc/hostid."
+	warn "ZFS: Pools may not import correctly."
+fi
+
+wait_for_zfs=0
+case "${root}" in
+	""|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
+		wait_for_zfs=1
+
+		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
+		wait_for_zfs=1
+
+		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.
+if [ ${wait_for_zfs} -eq 1 ]; then
+	ln -s /dev/null /dev/root 2>/dev/null
+	echo '[ -e /dev/zfs ]' > "${hookdir}/initqueue/finished/zfs.sh"
+fi