[libvirt-users] [Qemu-devel] About VM fork in QEMU

[Xinyang Ge]

> Libvirt does not yet support snapshot revert for external snapshots;
> there have been some ideas posted on list about what needs to be done to
> add the support, but so far no finalized patches.  It's a bug that your
> attempts to revert are not being more vocal about failing due to lack of
> support.  For now, you'll have to do the revert by manual use of
> qemu-img and editing of a libvirt <domain> XML; more details can be
> found on this wiki page (still in a bit of disarray, so feel free to
> edit it for clarity according to what works for you):

I am not able to find a way to revert an external snapshot created by
"virsh snapshot-create-as $dom $name --live --memspec
/path/to/memoryfile" using qemu-img. Could you give us some specific
instructions on how to revert an external snapshot manually?

Xinyang

-- 
Xinyang GE
Department of Computer Science & Engineering
The Pennsylvania State University
Homepage: http://www.cse.psu.edu/~xxg113/