As i progressed with the migration i found out, that my problem is more of a rare case. On my 3 nodes, where i had the problem. I did once move the /var/lib/ceph to a other partition, and symlinked it back. The kernel however is mounting the tempfs at the real path (/whatever/lib/ceph is mounted). I think because of that the cephadm script couldn't unmount correctly. On the 2 other nodes, where i didn't hack around, i had no issue. But for people having similar problems... after having it migrated, the new service for the osd need to be started manually: systemctl start ceph-$CLUSTERID@osd.$ID Yours, bbk _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx