From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Berra Subject: Re: Zero Superblock... any ways to recover? Date: Mon, 1 Mar 2004 19:12:41 +0100 Sender: linux-raid-owner@vger.kernel.org Message-ID: <20040301181240.GC4340@percy.comedia.it> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Return-path: Content-Disposition: inline In-Reply-To: To: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Mon, Mar 01, 2004 at 03:23:43PM +0100, Timo.Bolse@SerNet.DE wrote: >Hi List, > >The following Problem: > >I dd'ed a whole harddisk with the RAID Partitions to another harddisk. The new >harddisk was a little bit bigger than the original one. Now if i'am doing an >mdadm -E /dev/hdc on the new harddisk i get this: > >pentium-test:/proc/ide # mdadm -E /dev/hdc >mdadm: No super block found on /dev/hdc (Expected magic a92b4efc, got 00000000) > >There must be a way to find the superblock on the new device... is there anyone >who has a solution for this problem? > >I thougt about searching for a92b4efc on the device... > if you know the size of the old device you can find it starting at (sector aligned) DEVICE_SIZE - 64k since you do not give more information on how your raid was set-up prior to this activity it is difficult to give firther help Regards, L. -- Luca Berra -- bluca@comedia.it Communication Media & Services S.r.l. /"\ \ / ASCII RIBBON CAMPAIGN X AGAINST HTML MAIL / \