From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zivago Lee Subject: Re: Raid array is not automatically detected. Date: Fri, 13 Jul 2007 17:03:03 -0700 Message-ID: <1184371385.29034.7.camel@miyagip> References: <4697E231.3070906@hp.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4697E231.3070906@hp.com> Sender: linux-raid-owner@vger.kernel.org To: Bryan Christ Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Fri, 2007-07-13 at 15:36 -0500, Bryan Christ wrote: > My apologies if this is not the right place to ask this question. > Hopefully it is. > > I created a RAID5 array with: > > mdadm --create /dev/md0 --level=5 --raid-devices=5 /dev/sda1 /dev/sdb1 > /dev/sdc1 /dev/sdd1 /dev/sde1 > > mdadm -D /dev/md0 verifies the devices has a persistent super-block, but > upon reboot, /dev/md0 does not get automatically assembled (an hence is > not a installable/bootable device). > > I have created several raid1 arrays and one raid5 array this way and > have never had this problem. In all fairness, this is the first time I > have used mdadm for the job. Usually, I boot to something like > SysRescueCD, used raidtools to create my array and then reboot with my > Slackware install CD. > > Anyone know why this might be happening? Are you trying to boot on this raid device? I believe there is a limitation as what raid type you can boot off of (IIRC. only raid0 and raid1). -- Zivago Lee