On Thu, Apr 14, 2011 at 08:41:50PM +0200, Zenon Panoussis wrote: > 2011-04-14 20:22:24.887172 7fdc84de1720 OSD::mkfs: couldn't mount FileStore: error -95 > 2011-04-14 20:22:24.887226 7fdc84de1720 ** ERROR: error creating empty object store in /mnt/osd: error 95: Operation not supported > failed: '/sbin/mkcephfs -d /tmp/mkcephfs.ShIRgaTSnR --init-daemon osd.0' That usually means you're missing user_xattr from the mount options. Can you confirm? The error message was recently changed to be more helpful, just to help people falling into this particular trap. -- :(){ :|:&};: -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html