The utility mkcephfs seemed to work, it was very simple to use and apparently effective. It has been deprecated in favour of something called ceph-deploy, which does not work for me. I've ignored the deprecation messages until now, but in going from 70 to 72 I find that mkcephfs has finally gone. I have tried ceph-deploy, and it seems to be tied in to specific 'distributions' in some way. It is unuseable for me at present, because it reports: [ceph_deploy][ERROR ] UnsupportedPlatform: Platform is not supported: I therefore need to go back to first principles, but the documentation seems to have dropped descriptions of driving ceph without smoke and mirrors. The direct approach may be more laborious, but at least it would not depend on anything except ceph itself. Maybe I need to step back a version or two, set up my cluster with mkcephfs, then switch back to the latest to use it. I'll search the documentation again. -- 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