From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phil Turmel Subject: Re: Dead three-disk RAID-5. Help? Date: Fri, 19 Oct 2012 23:59:56 -0400 Message-ID: <508221BC.6080007@turmel.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Ken Cc: linux-raid List-Id: linux-raid.ids Hi Ken, On 10/19/2012 11:19 PM, Ken wrote: > I'm currently highly suspicious that I executed the wrong command in > the wrong window -- which would mean that I blew away the partition > table, and fsck'd the new partitions, on /dev/sda. Which > theoretically leaves me with /dev/sdb and /dev/sdc, no? Except that > when I try to access them, it won't allow me to create the array. If > I try the whole thing, it either tells me there's no partition table > on /dev/md0, or that it can't find the superblock on /dev/md0. Pretty thin on information to help us help you. Please go through your shell command history to show us some of the things you tried. Also, what distribution & version? Some commands to run to give us information to start with (attach the long ones to your e-mail as plain text): uname -a mdadm --version dmesg cat /proc/partitions cat /proc/mdstat mdadm -D /dev/md0 mdadm -E /dev/sd[abc] {repeat the last two for any other arrays or member devices involved. Partitions, perhaps?} > Any pointers on where to go from here would be very much appreciated > -- as (of course) the irony is that the system I *meant* to be > fsck'ing was intended to back up the original system. There are so many possible ways to set things up that we really need more information. > Thank you kindly, You're welcome. Phil