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: Sun, 07 Oct 2012 10:06:42 +0100 Message-ID: <50714622.4020903@anonymous.org.uk> References: <506C4A73.6050504@anonymous.org.uk> 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 RAID List-Id: linux-raid.ids On 07/10/2012 07:24, Arun Khan wrote: > Hi John, > > I posted the requested info to the list. > > I was wondering if you had a chance to go through it. > > Either way do let me know. I am anxious to get this solved if possible. Sorry, I was distracted by $realjob... The only thing that occurs to me is: >> # cat /boot/grub/grub.conf >> # grub.conf generated by anaconda >> # >> # Note that you do not have to rerun grub after making changes to this file >> # NOTICE: You do not have a /boot partition. This means that >> # all kernel and initrd paths are relative to /, eg. >> # root (hd0,0) >> # kernel /boot/vmlinuz-version ro root=/dev/sda1 >> # initrd /boot/initrd-[generic-]version.img >> #boot=/dev/sda this. Uncomment it, and change to boot=/dev/md_d0p1, and re-run `grub-install`. Also, just to be sure, if you haven't installed a new kernel since migrating to RAID, update your initrd - something like `mkinitrd -f /boot/initramfs-2.6.32-220.el6.x86_64.img 2.6.32-220.el6`. I can't think of anything else. Cheers, John.