diff -r c02cc832cb2d tools/hotplug/Linux/blktap
--- a/tools/hotplug/Linux/blktap	Tue Apr 13 18:19:33 2010 +0100
+++ b/tools/hotplug/Linux/blktap	Fri Apr 16 14:48:00 2010 -0600
@@ -59,10 +59,10 @@
 if [ -n "$t" ]
 then
     p=$(xenstore_read "$XENBUS_PATH/params")
-    # if we have a ':', chew from head including :
+    # if we have a ':', remove everything up to leading '/'
     if echo $p | grep -q \:
     then
-        p=${p#*:}
+        p="/${p#*/}"
     fi
 fi
 # some versions of readlink cannot be passed a regular file