explicitly set booted_partition to 0, rather than

rely on default value.  It should actually be extracted
from the bootpath instead, but that involves translating
from apple partition map entries to netbsd disklabel entries.

sys/arch/macppc/macppc/autoconf.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: autoconf.c,v 1.32 2002/09/22 03:10:14 dbj Exp $	*/
+/*	$NetBSD: autoconf.c,v 1.33 2002/09/22 03:21:44 dbj Exp $	*/
 
 /*
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -319,6 +319,7 @@ device_register(dev, aux)
 		return;
 	} else {
 		booted_device = dev;
+		booted_partition = 0; /* XXX -- should be extracted from bootpath */
 		return;
 	}
 }