On 20/09/2016 14:43, Pavel Dovgalyuk wrote:
> > No, this is unnecessary.  The image is unused in this case, so you can
> > specify the overlay as image=foo.qcow2.
> This branch allows user do not bother about overlays at all.
> Driver will automatically create temporary snapshot.

See other message.  There is already a way to do this in QEMU, which is
-snapshot.  I think it's a requirement that -snapshot works, and also
that your temporary overlay is implemented on top of -snapshot.

You can add some magic ways to enable -snapshot if you want, of course.


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