On 07/04/2014 03:18 PM, Loic Dachary wrote: > Hi, > > I extracted a disk with two partitions (journal and data) and copied its content in the hope to restart the OSD and recover its content. > > mount /dev/sdb1 /mnt > rsync -avH --numeric-ids /mnt/ /var/lib/ceph/osd/ceph-$(cat /mnt/whoami)/ I think you went wrong there, rsync man page: -a, --archive archive mode; equals -rlptgoD (no -H,-A,-X) -X, --xattrs preserve extended attributes So you didn't copy over the xattrs, so basically the data is lost/unusable. > rm /var/lib/ceph/osd/ceph-$(cat /mnt/whoami)/journal > dd if=/dev/sdb2 of=/var/lib/ceph/osd/ceph-$(cat /mnt/whoami)/journal > > and then > > start ceph-osd id=$(cat /mnt/whoami) > > It crashes on https://github.com/ceph/ceph/blob/v0.72.2/src/osd/PG.cc#L2182 and before it happens there is > > load_pgs ignoring unrecognized meta > > and the full "debug osd = 20" logs are in http://paste.ubuntu.com/7746993/ and this is > > root at bm4202:/etc/ceph# dpkg -l | grep ceph > ii ceph 0.72.2-1trusty amd64 distributed storage and file system > ii ceph-common 0.72.2-1trusty amd64 common utilities to mount and interact with a ceph storage > ii python-ceph 0.72.2-1trusty amd64 Python libraries for the Ceph distributed filesystem > root at bm4202:/etc/ceph# ceph --version > ceph version 0.72.2 (a913ded2ff138aefb8cb84d347d72164099cfd60) > > Cheers > > > > _______________________________________________ > ceph-users mailing list > ceph-users at lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Wido den Hollander 42on B.V. Ceph trainer and consultant Phone: +31 (0)20 700 9902 Skype: contact42on