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@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs