From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Greaves Subject: Re: mdadm problem Date: Mon, 06 Dec 2004 10:14:40 +0000 Message-ID: <41B43110.3020101@dgreaves.com> References: <41B42870.7050207@skynet.be> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <41B42870.7050207@skynet.be> Sender: linux-raid-owner@vger.kernel.org To: jym@skynet.be Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Jean-Yves Mert=E8s wrote: > Hello! > > I do not know if I may receive any support about mdadm through this=20 > e-mail address. If not, please, could you forward this message to the= =20 > appropriate box if one exists. > > I am currently trying to migrate a Linux partition (Mandrake 10) to=20 > RAID 1. To this purpose I have installed mdadm V1.8.1. This is an experimental version: This is a "development" release of mdadm. It should *not* be considered stable and should be used primarily for testing. The current "stable" version is 1.8.0. > The first attempt was to configure an equally-sized partition of my=20 > second disk (/dev/hdb) as part of a degraded RAID 1 device.=20 > Unfortunately, starting the array fails. The following shows pieces o= f=20 > information that should help understanding the case: > > The command I use is: > mdadm -C /dev/md0 --metadata=3D1 --level=3Draid1 --raid-devices=3D2 m= issing=20 > /dev/hdb5 -v > > To which mdadm answers: > mdadm: /dev/hdb5 appears to contain an ext2fs file system > size=3D4843912K mtime=3DThu Dec 2 17:11:54 2004 > mdadm: /dev/hdb5 appears to be part of a raid array: > level=3D1 devices=3D2 ctime=3DSat Dec 4 18:28:46 2004 > mdadm: size set to 4843904K > Continue creating array? y > VERS =3D 9000 > mdadm: ADD_NEW_DISK for /dev/hdb5 failed: Invalid argument _possibly_ because Version 1 superblocks requires 2.6.10 or a recent 2.6.10-rc snapshot Try agin with 1.8.0 and if you have probs then yell :) HTH David - To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html