SVN: geninitrd/trunk/functions

[glen]

Author: glen
Date: Mon Apr 16 18:02:52 2012
New Revision: 12548

Modified:
   geninitrd/trunk/functions
Log:
workaround for subsystem being empty on lvm2 2.02.72 on 2.6.16 kernel

Modified: geninitrd/trunk/functions
==============================================================================
--- geninitrd/trunk/functions	(original)
+++ geninitrd/trunk/functions	Mon Apr 16 18:02:52 2012
@@ -157,8 +157,16 @@
 # node can be /dev/dm-0, /dev/mapper/name
 # @return	subsystem name
 dm_subsystem() {
-	local node="$1"
-	dmsetup info -c --noheadings -o subsystem $node
+	local node="$1" out
+	out=$(dmsetup info -c --noheadings -o subsystem $node)
+	if [ -n "$out" ]; then
+		echo "$out"
+		return
+	fi
+
+	# for very old kernels (2.6.16), subsystem is empty, assume LVM
+	# TODO: fix this if needed to have crypt as well
+	echo "LVM"
 }
 
 # resolve any dm node to it's full path in /dev/mapper