On Wed, Aug 26, 2015 at 12:53:51AM +0200, Marko Weber|8000 wrote:
[....]
> 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.
>
>
> this happens with the newly created logical volume.
>
> the other 2 lvm partitions with xfs are fine.
>
> any idea?
Clearly you have a kernel too old to read the on-disk format that
mkfs.xfs has written - as I pointed out originally.
Would you please tell us what the versions of the kernels
you are using, as well as the mkfs.xfs version?
Cheers,
Dave.
--
Dave Chinner
david@xxxxxxxxxxxxx
|