On 8/25/15 11:51 AM, Marko Weber|8000 wrote: > > dave, > > Am 2015-08-25 13:54, schrieb Dave Chinner: >> 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. > > you was right. > There was new kernel built. /usr/src/linux pointed to new kernel source. > But machine was not rebooted. So kernel version before kernel built was loaded. > I rebooted machine. > i renoved logical volume > i created logical volume Hope it landed back in the same place! > i tried to mount it and get: > > Aug 25 18:43:15 backupserver kernel: md4: unknown partition table > Aug 25 18:43:15 backupserver syslog-ng[1417]: Internal error, alarm_set() called while an alarm is still active; > Aug 25 18:43:56 backupserver kernel: md4: unknown partition table > Aug 25 18:44:01 backupserver kernel: XFS (dm-2): Invalid superblock magic number > > pvdisplay shows: > > # pvdisplay > --- Physical volume --- > PV Name /dev/md4 > VG Name VolGroup01 > PV Size 2.69 TiB / not usable 1.25 MiB > > > so what is XFS missing? what does blkid /dev/md4 say? It looks like you might have a storage problem, now, and xfs can't even find a proper magic number on that device. -Eric _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
