From mboxrd@z Thu Jan 1 00:00:00 1970 From: Herta Van den Eynde Subject: Does grub support sw raid1? Date: Tue, 21 Mar 2006 16:50:05 +0100 Message-ID: <442020AD.7090902@cc.kuleuven.be> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org, redhat-list@redhat.com List-Id: linux-raid.ids (crossposted to linux-raid@vger.kernel.org and redhat-list@redhat.com) (apologies for this, but this should have be operational last week) I installed Red Hat EL AS 4 on a HP Proliant DL380, and configured all system devices in software RAID 1. I added an entry to grub.conf to fallback to the second disk in case the first entry fails. At boottime, booting from hd0 works fine. As does booting from hd1. Until I physically remove hd0 from the system. I tried manually installing grub on hd1, I added hd1 to the device.map and subsequently re-installed grub on it, I remapped hd0 to /dev/cciss/c0d1 and subsequently re-installed grub all to no avail. I previously installed this while the devices were in slots 2 and 3. The system wouldn't even boot then. It looks as though booting from sw RAID1 will only work when there's a valid device in slot 0. Still preferable over hw RAID1, but even better would be if this worked all the way. Is this working for anyone? Any idea what I may have overlooked? Any suggestions on how to debug this? Kind regards, Herta Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm