--- src/fstyp.c.orig	2001-11-19 06:57:05.000000000 +0100
+++ src/fstyp.c	2010-03-07 13:05:14.000000000 +0100
@@ -68,6 +68,7 @@
 		exit (EXIT_SUCCESS);
 	}
 		
+	fprintf (stderr, "unknown filesystem\n");
 	exit (EXIT_FAILURE);
 }