From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?iso-8859-1?Q?Jean-S=E9bastien?= Trottier Subject: Re: Unable to mount loopback devices in RAID mode Date: Fri, 27 Nov 2009 00:33:38 -0500 Message-ID: <20091127053336.GD25509@jsoft.dyndns.org> References: <200911192026.04694.lists-receive@programmierforen.de> <4B05D64B.7070705@hp.com> <200911202022.19306.lists-receive@programmierforen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Andi Drebes , linux-btrfs@vger.kernel.org To: jim owens Return-path: In-Reply-To: <200911202022.19306.lists-receive@programmierforen.de> List-ID: Hi Jim, In the case of RAID1 (or even RAID10), what happens if loop0 is the current master but is corrupted/dead and you want to mount loop1 to recover your data? Thanks, JST. On Fri, Nov 20, 2009 at 08:22:18PM +0100, Andi Drebes wrote: > Hi! > > > The problem is btrfs randomly changes the "current master" > > superblock of the filesystem. Only 1 of the devices will > > be mountable. You just have to try the other ones, like: > > > > > $ mount -t btrfs /dev/loop0 /mnt/btrfs > > > mount: wrong fs type, bad option, bad superblock on /dev/loop0, > > > > $ mount -t btrfs /dev/loop1 /mnt/btrfs > > > > until you find one that works. > Thanks for the hint. > > Cheers, > Andi > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >