Index: grub/util/getroot.c
===================================================================
--- grub.orig/util/getroot.c	2012-02-27 01:09:58.142614829 -0600
+++ grub/util/getroot.c	2012-02-27 01:10:07.237344000 -0600
@@ -302,7 +302,10 @@ find_root_devices_from_poolname (char *p
 		    devices = xrealloc (devices, sizeof (devices[0])
 					* devices_allocated);
 		  }
-		devices[ndevices++] = xasprintf ("/dev/%s", name);
+		if (name[0] == '/')
+		  devices[ndevices++] = xstrdup (name);
+		else
+		  devices[ndevices++] = xasprintf ("/dev/%s", name);
 	      }
 	    break;
 	  }
Index: grub/ChangeLog.zfs-devices
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ grub/ChangeLog.zfs-devices	2012-02-27 01:20:10.839892000 -0600
@@ -0,0 +1,5 @@
+2012-02-27  Richard Laager <address@hidden>
+
+	* util/getroot.c (find_root_devices_from_poolname): Handle ZFS vdevs
+	  with full paths.
+