--- drbd-0.7.23/drbd_config.h.orig	2007-02-05 00:51:13.000000000 +0100
+++ drbd-0.7.23/drbd_config.h	2007-02-05 00:51:18.000000000 +0100
@@ -69,6 +69,6 @@
 // but more recent kernels define it in arch/um/include/mem.h
 #define HAVE_UML_TO_VIRT
 
-//#define NO_MORE_DEV_FS
+#define NO_MORE_DEV_FS
 
 #endif