From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keld =?iso-8859-1?Q?J=F8rn?= Simonsen Subject: Re: A few remaining questions about installing to RAID-10 Date: Fri, 2 Oct 2009 09:51:41 +0200 Message-ID: <20091002075141.GB2781@rap.rap.dk> References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Ben DJ Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Thu, Oct 01, 2009 at 06:27:57PM -0700, Ben DJ wrote: > I'm setting up new linux boxes, hoping to install whatever OS I choose > to a software RAID array. > > I've got 4 identical SATA drives, and would ideally like to use RAID-10. > > I've read a bunch of slightly stale How-To docs, and have a few questions. > > (1) Can Linux boot from /boot on RAID-10? Oldest info I found said no > boot from RAID at all, then more recent docs said boot from RAID-1 > works. I found nothing on RAID-10. What's the latest sccop on this? You can boot from a raid-10,n2 with the superblock last, standard raid10,n2 will do. But the normal thing is to boot from raid-1 There is a description of a setup at http://linux-raid.osdl.org/index.php/Preventing_against_a_failing_disk > (2) As far as I can tell, none of the installers in Centos, Ubuntu or > Opensuse are RAID-10 aware. Seems like the sanest way to get setup > would be to boot from SystemRescueCD, do the partitioning and RAID > creation, then re-boot from an installer disk using the pre-setup > disks. I have set up centos systems using the above guide. best regards keld