Ubuntu precise: Linux obs-10-177-66-4 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux # mount /dev/sdc on /vol0/data/osd.0 type ext4 (rw,noexec,nodev,noatime,nodiratime,user_xattr,data=writeback,barrier=0) # ceph-osd -i 0 --mkjournal --mkfs --monmap /tmp/monmap 2012-05-21 22:36:54.150374 7f65fbc0b780 -1 filestore(/vol0/data/osd.0) leveldb db created 2012-05-21 22:36:54.152699 7f65fbc0b780 -1 filestore(/vol0/data/osd.0) Extended attributes don't appear to work. Got error (2) No such file or directory. If you are using ext3 or ext4, be sure to mount the underlying file system with the 'user_xattr' option. 2012-05-21 22:36:54.152729 7f65fbc0b780 -1 OSD::mkfs: couldn't mount FileStore: error -95 2012-05-21 22:36:54.152761 7f65fbc0b780 -1 ** ERROR: error creating empty object store in /vol0/data/osd.0: (95) Operation not supported # ls -la /vol0/data/osd.0 total 524328 drwxr-xr-x 4 root root 4096 May 21 22:36 . drwxr-xr-x 29 root root 4096 May 21 22:34 .. drwxr-xr-x 3 root root 4096 May 21 22:36 current -rw-r--r-- 1 root root 37 May 21 22:36 fsid -rw-r--r-- 1 root root 536870912 May 21 22:36 journal drwx------ 2 root root 16384 May 9 15:06 lost+found -rw-r--r-- 1 root root 4 May 21 22:36 store_version Is anyone have some idea ?? -- ----- Pozdrawiam Sławek "sZiBis" Skowron -- 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