--- /etc/init.d/umountiscsi.sh.orig	2014-06-01 13:10:48.701071824 +0100
+++ /etc/init.d/umountiscsi.sh	2014-06-01 13:12:15.219170707 +0100
@@ -54,6 +54,9 @@
 			continue
 		fi
 		for BLOCK_FILE in $SESSION_DIR/target*/*\:*/block/*; do
+			if ! [ -d $BLOCK_FILE ]; then
+				continue
+			fi
 			BLOCK_DEV=`echo "$BLOCK_FILE" | sed 's/.*block\///'`
 			DOS_PARTITIONS="`awk "/^\/dev\/$BLOCK_DEV/ { print \\$2; }" < /proc/mounts`"
 			for DEVICE in $DOS_PARTITIONS; do