From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: [PATCH] sata_mv: Fix broken Marvell 7042 support. Date: Mon, 03 Dec 2007 13:32:10 -0500 Message-ID: <47544BAA.1020901@rtr.ca> References: <4751A2DA.6030403@rtr.ca> <20071203154749.6lah7pulw8ow0s84@email.syntomax.com> <47543C58.4040106@rtr.ca> <475447A0.2010101@rtr.ca> <47544B2F.5080007@pobox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from rtr.ca ([76.10.145.34]:3239 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751358AbXLCScM (ORCPT ); Mon, 3 Dec 2007 13:32:12 -0500 In-Reply-To: <47544B2F.5080007@pobox.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jeff Garzik Cc: hp@syntomax.com, "Morrison, Tom" , IDE/ATA development list , Tejun Heo , Alan Cox Jeff Garzik wrote: > Mark Lord wrote: >> The BIOS on the Highpoint RR 2300 *corrupts* the GRUB image, >> so GRUB won't boot for me there. I actually have to re-install >> GRUB after each attempt so that the drive is usable again >> with the onboard Intel (ahci) ports. >> >> So one then wonders exactly what the Highpoint BIOS is overwriting, > > RAID metadata, one would assume from the 'RR'... > > I've no idea if the standard solution is applicable to HPT RR: going > through BIOS setup and turning off RAID completely, or if not possible, > putting it into JBOD mode. .. It's an add-on PCIe board, with it's own onboard "RAID management" BIOS. The onboard BIOS has the drive labelled as "Legacy", but it still seems to insist upon writing it's meta data at every startup. So to boot from it, we may need to find a way to keep our bootloader away from those same sector(s). Cheers