Am 10.06.13 09:07, schrieb Kashyap Chamarthy:
On 06/09/2013 02:46 PM, Thomas Stein wrote:
> Hello.
>
> I just tried the following:
>
> virsh dumpxml --security-info gentoo-template > gentoo-template.xml
> virsh snapshot-create gentoo-template
> virsh undefine gentoo-template
Wait - is that really the command you used after "snapshot-create" ?
Because: You cannot undefine a guest with a snapshot without first
deleting its metadata
To cleanly delete, maybe you should've done:
$ virsh snapshot-delete --domain gentoo-template SNAPSHOTID --metadata
Did that. But that deletes that snapshot too, no?
> virsh blockcopy gentoo-template vda
> /opt/virt-backup-blockcopy/gentoo-template/gentoo-template.qcow2 --wait --verbose
--finish
> virsh define gentoo-template.xml
Can you also paste the output of:
$ qemu-img info --backing-chain \
/opt/virt-backup-blockcopy/gentoo-template/gentoo-template.qcow2
hn ~ # qemu-img info --backing-chain
/opt/virt-backup-blockcopy/gentoo-template/gentoo-template.qcow2
image: /opt/virt-backup-blockcopy/gentoo-template/gentoo-template.qcow2
file format: qcow2
virtual size: 130G (139586437120 bytes)
disk size: 30G
cluster_size: 65536
Just to make myself clear. I want to backup the qcow image /with/ the
internal snapshot. Is that even possible with blockcopy?
thanks and best regards.
> virsh snapshot-delete gentoo-template --current
>
> But if i restore the /opt/virt-backup-blockcopy/gentoo-template/gentoo-template.qcow2
the
> snapshot is gone.
>
> Someone has an idea what i'm missing? I suppose i'm just missunderstandig the
snapshot
> mechanism.
Here's how I used blockcopy (few months ago, slightly outdated) --
http://kashyapc.fedorapeople.org/virt/lc-2012/live-backup-with-blockcopy.txt
>
> thanks an best regards
> t.
>
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