add one more check into savedefault.

ChangeLog

@@ -1,7 +1,13 @@
+2001-02-03  OKUJI Yoshinori  <okuji@gnu.org>
+
+	* stage2/builtins.c (savedefault_func)
+	[!SUPPORT_DISKLESS && !GRUB_UTIL]: Check if the version
+	contained in the buffer matches to current one as well.
+	
 2001-02-02  OKUJI Yoshinori  <okuji@gnu.org>
 
 	* stage2/builtins.c (savedefault_func)
-	[!SUPPORT_DISKLESS && !GRUB_UTIL]: Check if the stage2 is
+	[!SUPPORT_DISKLESS && !GRUB_UTIL]: Check if the stage2 id is
 	STAGE2_ID_STAGE2. Suggested by Jochen Hoenicke.
 	
 	* stage2/stage2.c (cmain): If DEFAULT_ENTRY is out of entries,

stage2/builtins.c

@@ -3081,7 +3081,8 @@ savedefault_func (char *arg, int flags)
     }
 
   /* Sanity check.  */
-  if (buffer[STAGE2_STAGE2_ID] != STAGE2_ID_STAGE2)
+  if (buffer[STAGE2_STAGE2_ID] != STAGE2_ID_STAGE2
+      || *((short *) (buffer + STAGE2_VER_MAJ_OFFS)) != COMPAT_VERSION)
     {
       errnum = ERR_BAD_VERSION;
       return 1;