Hello, As a hobbies, I have been using Ceph Nautilus as a single server with 8 OSDs. Part of the setup I set the crush map to fail at OSD level: step chooseleaf firstn 0 type osd. Sadly, I didn’t take the necessary precaution for my boot disk and the OS failed. I have backups of /etc/ceph/ but I am not able to recover the OS. Can you think of a way for me to recreate the OS and adopt the 8 OSD without loosing the data? Thanks & regards, Daniel _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx