From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932364AbVLULTE (ORCPT ); Wed, 21 Dec 2005 06:19:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932366AbVLULTE (ORCPT ); Wed, 21 Dec 2005 06:19:04 -0500 Received: from havoc.gtf.org ([69.61.125.42]:22738 "EHLO havoc.gtf.org") by vger.kernel.org with ESMTP id S932364AbVLULTD (ORCPT ); Wed, 21 Dec 2005 06:19:03 -0500 Date: Wed, 21 Dec 2005 06:18:52 -0500 From: Jeff Garzik To: Paul Rolland Cc: linux-kernel@vger.kernel.org Subject: Re: [Linux 2.4.32] SATA ICH5/PIIX and Combined mode Message-ID: <20051221111852.GA7698@havoc.gtf.org> References: <200512211110.jBLBALD24852@tag.witbe.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200512211110.jBLBALD24852@tag.witbe.net> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 21, 2005 at 12:10:22PM +0100, Paul Rolland wrote: > I have a machine with two SATA HDD, and one PATA CDRom. > Bios is configured for combined mode, and installing a RedHat ES3 > (Kernel 2.4.21-ELsmp) is fine, the two HDD are up, the installation > is fine and the CDRom is working. > > Then, upgrading to a vanilla 2.4.32, the ata_piix.c file contains > a "combined mode not supported" and booting the machine hangs, as > no VFS are up for root device. > > Of course, I can disable the Combined setup in the BIOS, then I have > my two HDD, but no CDRom... > > What is the "trick" to have a 2.4.32 be able to do what a 2.4.21 was > doing ? Apply all the Red Hat-specific patches that you ditched, when you switched to a vanilla kernel... The patch that supported combined mode for you is in there. Jeff