Hello What am I trying? - To setup single node cluster for Ceph, OSD, MON and MDS on same node. OS: Ubuntu 11.04 (natty) I installed Ceph following these instructions: ================= wget -q -O- https://raw.github.com/NewDreamNetwork/ceph/master/keys/release.asc \ | sudo apt-key add - sudo tee /etc/apt/sources.list.d/ceph.list <<EOF deb http://ceph.newdream.net/debian/ DISTRO main deb-src http://ceph.newdream.net/debian/ DISTRO main EOF sudo apt-get update sudo apt-get install ceph ================= Next I created /etc/ceph.conf file with following contents: ========= [global] auth supported = cephx keyring = /etc/ceph/ceph.keyring [mon] mon data = /ceph_data/mon.0 [mds] [osd] osd data = /ceph_data/osd.0 osd journal = /ceph_data/osd.0.journal osd journal size = 1000 [mon.0] host = atish-virtual-machine mon addr = 10.72.147.207:6789 [osd.0] host = atish-virtual-machine [mds.0] host = atish-virtual-machine =========== Now on running: mkcephfs -a -c ceph.conf -k ceph.keyring I get following output: ============ atish@atish-virtual-machine:/etc/ceph$ mkcephfs -a -c ceph.conf -k ceph.keyring temp dir is /tmp/mkcephfs.dh5U7fAf0a preparing monmap in /tmp/mkcephfs.dh5U7fAf0a/monmap /usr/bin/monmaptool --create --clobber --add 0 10.72.147.207:6789 --print /tmp/mkcephfs.dh5U7fAf0a/monmap /usr/bin/monmaptool: monmap file /tmp/mkcephfs.dh5U7fAf0a/monmap /usr/bin/monmaptool: generated fsid 0fad0467-bfc6-5063-935b-5abd87dbebd5 epoch 1 fsid 0fad0467-bfc6-5063-935b-5abd87dbebd5 last_changed 2011-09-14 20:09:10.557121 created 2011-09-14 20:09:10.557121 0: 10.72.147.207:6789/0 mon.0 /usr/bin/monmaptool: writing epoch 1 to /tmp/mkcephfs.dh5U7fAf0a/monmap (1 monitors) === osd.0 === failed to open log file '/var/log/ceph/osd.0.log': error 13: Permission denied ** WARNING: Ceph is still under development. Any feedback can be directed ** ** at ceph-devel@xxxxxxxxxxxxxxx or http://ceph.newdream.net/. ** 2011-09-14 20:09:10.944686 b77d86e0 AdminSocketConfigObs::init: failed: AdminSocket::bind_and_listen: failed to bind the UNIX domain socket to '/var/run/ceph/osd.0.asok': error 2: No such file or directory 2011-09-14 20:09:10.944701 b77d86e0 AdminSocketConfigObs: failed to start AdminSocket 2011-09-14 20:09:10.946025 b77d86e0 filestore(/ceph_data/osd.0) FileStore::mkfs: failed to open /ceph_data/osd.0/fsid: error 13: Permission denied 2011-09-14 20:09:10.946036 b77d86e0 OSD::mkfs: FileStore::mkfs failed with error -13 2011-09-14 20:09:10.946243 b77d86e0 ** ERROR: error creating empty object store in /ceph_data/osd.0: error 13: Permission denied failed: '/sbin/mkcephfs -d /tmp/mkcephfs.dh5U7fAf0a --init-daemon osd.0' atish@atish-virtual-machine:/etc/ceph$ ================ Can you please guide me with setting Ceph up correctly? Where have I gone wrong? Final aim: I intend to use just the Ceph Object Storage - RASOS - with S3/REST. Waiting for reply. Regards Atish -- 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