Thanks for explanation darren , you were correct , looks like qemu does not support RBD
Supported formats: raw cow qcow vdi vmdk cloop dmg bochs vpc vvfat qcow2 qed vhdx parallels nbd blkdebug host_cdrom host_floppy host_device file gluster gluster gluster gluster [root@rdo qemu(keystone_admin)]# I will try the steps provided by you in last email. If you're using Centos, you'll need a qemu-kvm that is built with rbd support. You can grab this src rpm for qemu-kvm-rhev from Redhat and build it yourself: http://ftp.redhat.com/redhat/linux/enterprise/6Server/en/RHEV/SRPMS/qemu-kvm-rhev-0.12.1.2-2.415.el6.src.rpm Using: rpmbuild -ba --with rhev_features --without guest_agent qemu-kvm.spec Many Thanks Karan Singh ----- Original Message ----- From: "Darren Birkett" <darren.birk...@gmail.com> To: "Karan Singh" <ksi...@csc.fi> Cc: "lad raghavendra" <lad.raghaven...@gmail.com>, "Tim Bell" <tim.b...@cern.ch>, "Openstack Milis" <openstack@lists.openstack.org> Sent: Thursday, 5 December, 2013 3:11:11 PM Subject: Re: [Openstack] Openstack--instance-boot-from-ceph-volume On 5 December 2013 12:55, Karan Singh <ksi...@csc.fi> wrote: > I am using qemu-kvm provided by ceph repository that have RBD support . Using > this i am able to create RBD volumes and its working good. Just creating cinder volumes doesn't actually use qemu-kvm, which is why that's working ok > could not open disk image rbd:ceph... It's difficult to say exactly where the issue is. Which qemu-kvm from ceph.com are you using? What's the output of: qemu-img -h Thanks Darren _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack