From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1FLrSJ-00006I-2d for mharc-grub-devel@gnu.org; Tue, 21 Mar 2006 19:44:07 -0500 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FLrSH-00006B-Qr for grub-devel@gnu.org; Tue, 21 Mar 2006 19:44:05 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FLrSG-00005z-6t for grub-devel@gnu.org; Tue, 21 Mar 2006 19:44:05 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FLrSG-00005w-2D for grub-devel@gnu.org; Tue, 21 Mar 2006 19:44:04 -0500 Received: from [204.127.192.84] (helo=rwcrmhc14.comcast.net) by monty-python.gnu.org with esmtp (Exim 4.52) id 1FLrSK-0003MH-5H for grub-devel@gnu.org; Tue, 21 Mar 2006 19:44:08 -0500 Received: from [192.168.1.35] (c-67-163-39-124.hsd1.il.comcast.net[67.163.39.124]) by comcast.net (rwcrmhc14) with ESMTP id <20060322004351m1400skcg2e>; Wed, 22 Mar 2006 00:43:51 +0000 Message-ID: <44209DCE.4070208@personnelware.com> Date: Tue, 21 Mar 2006 18:43:58 -0600 From: Carl Karsten User-Agent: Thunderbird 2.0a1 (Windows/20060321) MIME-Version: 1.0 To: grub-devel@gnu.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: software raid1 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GRUB 2 List-Id: The development of GRUB 2 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Mar 2006 00:44:06 -0000 I have been messing around with software raid1 - mirroring 2 drives - including the boot sectors. The goal is to be able to remove either drive and still have a functioning system. I realize that this is "not supported" given that "Add support for software RAID" is on the http://grub.enbug.org/TodoList but I have heard it can be done with some trickery: install grub on both drives and rely on the fact that /dev/hda1 and /dev/hda2 and /dev/md0 are all "the same thing" as long as md0 is the only one that gets written to. I did run into one problem: if you have ide master and slave, and you pull the master, the slave dissapears and the box/bios won't see it so it won't boot from it. so I am guessing I have to make each drive the master on a seperate ide bus so that pulling one won't take out the other. Before I spend too much time trying to make this work, anyone know of a HowTo that outlines this? CarlFK