From mboxrd@z Thu Jan 1 00:00:00 1970 From: Graeme Gemmill Subject: Re: mdadm problem Date: Mon, 22 Mar 2010 10:56:23 +0000 Message-ID: <4BA74CD7.2070607@gemmill.name> References: <4BA664BA.20505@gemmill.name> <1f0f1a961003211151l2a30b256g471c60cc61d14ec2@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1f0f1a961003211151l2a30b256g471c60cc61d14ec2@mail.gmail.com> Sender: linux-raid-owner@vger.kernel.org To: Tom Carlson Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On 21/03/10 18:51, Tom Carlson wrote: > On 21 March 2010 18:26, Graeme Gemmill wrote > some stuff.... > >> Some RAID expertise would be very welcome! >> > I'm no expert... but I think you need to do the following: > mdadm --stop /dev/md127 > mdadm --zero-superblock /dev/sd[a-c] > mdadm --create /dev/md0 --level=5 --raid-devices=3 /dev/sda1 /dev/sdb1 /dev/sdc1 > > All the best, > > T > Maybe not, Tom, but you're clearly well on the way to becoming one! Steps 1& 2 worked, but the create step failed because mdadm said it couldn't recognise /dev/sda1. However a reboot later and it worked. Thanks, Graeme