On Wed, Aug 26, 2015 at 01:02:58AM +0200, Marko Weber|8000 wrote: > 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 Kernel is too old for finobt=1, and really too old for CRCs to be enabled (not fully supported until 3.16). So, either: > >mkfs.xfs with -m crc=0,finobt=0 to turn off these features if you have > >an older kernel which > >doesn't understand them. or upgrade your kernel. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
