From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 16 Jan 2001 08:41:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 16 Jan 2001 08:41:03 -0500 Received: from lca0042.lss.emc.com ([168.159.120.42]:37264 "EHLO lca0042.lss.emc.com") by vger.kernel.org with ESMTP id ; Tue, 16 Jan 2001 08:40:53 -0500 To: linux-kernel@vger.kernel.org Subject: problem mounting root under 2.4.0 From: Chris Jones Date: 16 Jan 2001 08:40:41 -0500 Message-ID: User-Agent: Gnus/5.0807 (Gnus v5.8.7) XEmacs/21.1 (Channel Islands) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I'm unable to boot a 2.4.0 kernel on a system that's been running 2.2.18. It fails early in boot with the following messages: request-module[block-major-8]: Root fs not mounted VFS: Cannot open root device "801" or 08:01 Please append a correct "root=" boot option Kernel panic: VFS: Unable to mount root fs on 08:01 I suspect the problem is related to loading the aic7xxx.o module, but the relevant messages have scrolled off the top of the screen. I tried setting the VGA mode to extended to give me 50 lines of output, but even though "lilo -q -v" shows "VGA mode: EXTENDED", I still have a 25 line screen. CTRL-Alt-DEL doesn't work, so I have to power-cycle the machine, so I lose any messages that are saved in memory. Is there a way I can get the equivalent of "more" breaks on boot so I have a chance to read the messages? I have upgraded to modutils 2.4.1 and mkinitrd 2.5. Are there some gotchas I should be aware of? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/