Because of the latest librbd version, the image format has been changed from “rbd:pool/image” to “pool/image”.
So you see the error msg “ could not open disk image”. 发件人: ceph-users-boun...@lists.ceph.com [mailto:ceph-users-boun...@lists.ceph.com] 代表 Gilles Mocellin 发送时间: 2013年12月6日 19:38 收件人: ceph-users@lists.ceph.com 主题: Re: [ceph-users] Openstack--instance-boot-from-ceph-volume:: error could not open disk image rbd Le 05/12/2013 14:01, Karan Singh a écrit : Hello Everyone Trying to boot from ceph volume using bolg http://www.sebastien-han.fr/blog/2012/06/10/introducing-ceph-to-openstack/ and http://docs.openstack.org/user-guide/content/boot_from_volume.html Need help for this error. ===================================== Logs from /var/log/libvirt/qemu :: ===================================== qemu-kvm: -drive file=rbd:ceph-volumes/volume-dd315dda-b22a-4cf8-8b77-7c2b2f163155:id=volumes :key=AQC804xS8HzFJxAAD/zzQ8LMzq9wDLq/5a472g==:auth_supported=cephx\;none:mon _host=192.168.1.31\:6789\;192.168.1.33\:6789\;192.168.1.38\:6789,if=none,id= drive-virtio-disk0,format=raw,serial=dd315dda-b22a-4cf8-8b77-7c2b2f163155,ca che=none: could not open disk image rbd:ceph-volumes/volume-dd315dda-b22a-4cf8-8b77-7c2b2f163155:id=volumes:key= AQC804xS8HzFJxAAD/zzQ8LMzq9wDLq/5a472g==:auth_supported=cephx\;none:mon_host =192.168.1.31\:6789\;192.168.1.33\:6789\;192.168.1.38\:6789: No such file or directory 2013-12-05 12:42:29.544+0000: shutting down Hello, Does your qemu supports RBD images ? See in the last line of, supported formats : qemu-img -h I had the same thing recently, using Debian wheezy, where qemu does not supports RBD. [...]
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