From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id CB1B27F37 for ; Tue, 25 Aug 2015 06:54:34 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6580FAC004 for ; Tue, 25 Aug 2015 04:54:31 -0700 (PDT) Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id sHqBCSgu6YDskiJ3 for ; Tue, 25 Aug 2015 04:54:25 -0700 (PDT) Date: Tue, 25 Aug 2015 21:54:12 +1000 From: Dave Chinner Subject: Re: Cant mount xfs lvm. Experimental Features? Message-ID: <20150825115412.GI714@dastard> References: <8a6d5afa8829aec73d911f35815d7b92@zbfmail.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <8a6d5afa8829aec73d911f35815d7b92@zbfmail.de> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: weber@zbfmail.de Cc: Xfs On Tue, Aug 25, 2015 at 10:25:16AM +0200, Marko Weber|8000 wrote: > > Hello List, Hello Dave... > > > i try to mount on my backup server an Lvm Partition and get errors > in stdout and log: > > /var/log/messages: > > Aug 25 10:20:31 backupserver kernel: XFS (dm-2): Version 5 > superblock detected. This kernel has EXPERIMENTAL support enabled! > Aug 25 10:20:31 backupserver kernel: Use of these features in this > kernel is at your own risk! > Aug 25 10:20:31 backupserver kernel: XFS (dm-2): Superblock has > unknown read-only compatible features (0x1) enabled. > Aug 25 10:20:31 backupserver kernel: XFS (dm-2): Attempted to mount > read-only compatible filesystem read-write. > Aug 25 10:20:31 backupserver kernel: Filesystem can only be safely > mounted read only. > Aug 25 10:20:31 backupserver kernel: XFS (dm-2): SB validate failed > with error 22. You need to run the same version kernel on both servers. The primary has a more recent kernel and feature set than your older backup server is running. Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs