From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Robinson Subject: Re: CentOS 6.2 on partition able RAID1 (md_d0) - kernel panic with either disk not present Date: Wed, 03 Oct 2012 15:23:47 +0100 Message-ID: <506C4A73.6050504@anonymous.org.uk> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Arun Khan Cc: Linux MDADM Raid List-Id: linux-raid.ids On 03/10/2012 12:17, Arun Khan wrote: > I had posted the following in the CentOS General mailing list but the > problem remains unresolved. > > Here is the link to the CentOS thread: > > > I am posting it here in the hope that some one will be able to help me > pinpoint the "gotcha" and fix it. > > In case you are able to help, please read all the postings in the > above thread, to see what others have suggested and what I have > already tried, so as to avoid repetition of questions and answers. Please post the full output of cat /proc/mdstat cat /etc/mdadm.conf mdadm -Evvs file -s /dev/sda file -s /dev/sda1 file -s /dev/sdb file -s /dev/sdb1 cat /etc/grub/grub.conf (from inside the running VM, obviously). I have to say I don't like the wiki article you quoted as a method of installation, but let's see if we can fix it before starting out doing it another way. In addition, you probably ought to be testing on bare metal similar to your future production box. Cheers, John.