Description of problem: Ceph stores configuration files and keys in /etc/ceph, but this directory does not get created by the RPM. This causes you pain when later running mkcephfs, because it fails to copy files to a non-existant directory. I would also suggest that the default configuration file: /usr/share/doc/ceph/sample.ceph.conf be copied or linked to /etc/ceph/ceph.conf.sample Version-Release number of selected component (if applicable): ceph-0.31-4.fc17.x86_64 (also affects f16) How reproducible: Always Steps to Reproduce: 1. Install ceph 2. Check if /etc/ceph exists