Re: qemu-img snapshots with backing stores?

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Guess  I should add I have libvirt 0.9.2, as that's what ubuntu has
packaged.

On 06/06/2012 12:55 PM, Sean Abbott wrote:
> So, I was attempting to use qemu snapshots with backing stores.  The
> QEMU docs (http://wiki.qemu.org/Documentation/CreateSnapshot) make it
> sound like you simply point your qemu at the snapshot after it's
> creation, and you're golden.
>
> When attempting this with libvirt, though, it fails.
>
> I created a snapshot using the above tutorial.  the resulting file is
> disk.0, and a qmeu-img info on it returns:
>
> image: disk.0
> file format: qcow2
> virtual size: 29G (31457280000 bytes)
> disk size: 140K
> cluster_size: 65536
> backing file: /var/lib/one/public/lin_client_current.qcow2 (actual path:
> /var/lib/one/public/lin_client_current.qcow2)
>
> So that all looks groovy, right?
>
> Then, I created (via opennebula) an xml deployment file like so: 
> http://paste.ubuntu.com/1027145/
>
> When I attempt to do a virsh create, I get the following errors:
>
> virsh # create deployment.0
> error: Failed to create domain from deployment.0
> error: internal error process exited while connecting to monitor:
> file=/var/lib/one/vm/56/images/disk.0,if=none,id=drive-virtio-disk0,boot=on,format=qcow2,cache=none
> qemu-kvm: boot=on|off is deprecated and will be ignored. Future versions
> will reject this parameter. Please update your scripts.
> qemu-system-x86_64: -drive
> file=/var/lib/one/vm/56/images/disk.0,if=none,id=drive-virtio-disk0,boot=on,format=qcow2,cache=none,boot=on:
> could not open disk image /var/lib/one/vm/56/images/disk.0: Invalid argument
>
> So...something isn't working. Is it possible to do this, or should I
> give up on this path?
>
> Thanks!
>
> sean
>
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