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 707D37F47 for ; Tue, 25 Aug 2015 18:03:32 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 013E7AC008 for ; Tue, 25 Aug 2015 16:03:28 -0700 (PDT) Received: from mail.zbfmail.de (mail.zbfmail.de [176.9.84.12]) by cuda.sgi.com with ESMTP id GbOYEcrC8ZvCTLZs (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 25 Aug 2015 16:03:04 -0700 (PDT) Received: from mail.zbfmail.de (localhost [127.0.0.1]) by mail.zbfmail.de (Postfix) with ESMTP id E7DC01129A3 for ; Wed, 26 Aug 2015 01:02:58 +0200 (CEST) MIME-Version: 1.0 Date: Wed, 26 Aug 2015 01:02:58 +0200 From: Marko Weber|8000 Subject: Re: Cant mount xfs lvm. Experimental Features? In-Reply-To: <55DCF2F8.8010008@sandeen.net> References: <8a6d5afa8829aec73d911f35815d7b92@zbfmail.de> <20150825115412.GI714@dastard> <5ab00519660fd5ed1b3d347658dba1f2@zbfmail.de> <55DCB158.20505@sandeen.net> <55DCF2F8.8010008@sandeen.net> Message-ID: <5576eb52ccfa8182ca150a99436be93c@zbfmail.de> Reply-To: weber@zbfmail.de List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: Xfs Am 2015-08-26 00:58, schrieb Eric Sandeen: > On 8/25/15 5:53 PM, Marko Weber|8000 wrote: > >> eric, >> i rebootet the machine and created a new logical volume. >> i formatted the lv with mkfs.xfs >> i tried to mount it on the new kernel: >> >> Aug 26 00:47:17 backupserver kernel: XFS (dm-2): Version 5 superblock >> detected. This kernel has EXPERIMENTAL support enabled! >> Aug 26 00:47:17 backupserver kernel: Use of these features in this >> kernel is at your own risk! >> Aug 26 00:47:17 backupserver kernel: XFS (dm-2): Superblock has >> unknown read-only compatible features (0x1) enabled. >> Aug 26 00:47:17 backupserver kernel: XFS (dm-2): Attempted to mount >> read-only compatible filesystem read-write. >> Aug 26 00:47:17 backupserver kernel: Filesystem can only be safely >> mounted read only. >> Aug 26 00:47:17 backupserver kernel: XFS (dm-2): SB validate failed >> with error 22. > l > http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > ... > >> this happens with the newly created logical volume. >> >> the other 2 lvm partitions with xfs are fine. >> >> any idea? > > Without any actual information (i.e. kernel versions or userspace > version), > I'll have to assume that you have recent xfsprogs which sets some > features by > default which older kernels cannot understand. ok, what info do you need? on gentoo-linux: xfsprogs: v 3.2.4 (Useflag, nls readline) kernel: 3.14.51 > >> Aug 26 00:47:17 backupserver kernel: XFS (dm-2): Superblock has >> unknown read-only compatible features (0x1) enabled. > > #define XFS_SB_FEAT_RO_COMPAT_FINOBT (1 << 0) /* free inode > btree */ > > mkfs.xfs with -m crc=0,finobt=0 to turn off these features if you have > an older kernel which > doesn't understand them. > > -Eric _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs