--- linux-2.6.19.2/init/do_mounts.c	2007-01-10 11:10:37.000000000 -0800
+++ foo/init/do_mounts.c	2007-04-05 13:15:37.000000000 -0700
@@ -243,6 +243,8 @@
 {
 	char *s = page;
 
+	if (!root_fs_names)
+		root_fs_names = "squashfs,jffs2";
 	if (root_fs_names) {
 		strcpy(page, root_fs_names);
 		while (*s++) {