I`m working my way trough https://docs.starlingx.io/deploy_install_guides/r2_release/virtual/aio_simpl... but on step 5. Add an OSD on controller-0 for ceph: the host-stor-add controllor0 command returns with the following error. [root@controller-0 etc(keystone_admin)]# system host-disk-list controller-0 | awk '/\/dev\/sdb/{print $2}' | xargs -i system host-stor-add controller-0 {} Please install storage-0 or configure a Ceph monitor on a worker node before adding storage devices. Any ideas how to fix this ? greetings Kris