Re: [Qemu-devel] "Hot" resizing QCow2 image using a simple python script

[Kevin Wolf]

Am Mittwoch, 30. Dezember 2009 13:18 schrieb Stefan Weil:
> Laurent Coustet schrieb:
> > I've seen the code on git a little bit, seems rather simple to me, but
> > what do you think is the better way to integrate such a fonctionality
> > ? New command ?
> >
> > The best approch for me I think is to extend "convert".
> >
> > Example:
> > qemu-img -f qcow2 -O qcow2 original5G.qcow2 output10G.qcow2 +5G
> >
> > Thanks,
> 
> Extending convert would be good if you want to create a new image.
> This syntax might be better (no new parameter, final size instead of delta):
> 
> qemu-img convert -f qcow2 -O qcow2 -o size=10G original5G.qcow2
> output10G.qcow2
> 
> For resizing an existing image, a new command is needed:
> 
> qemu-img resize -f qcow2 -o size=10G original5G.qcow2
> 
> Although there is no urgent need for either variant...

I agree that convert is the wrong command if you don't copy. And copying an 
image while resizing is probably not a very common task. If you really need 
to do it you could copy first and resize afterwards. So I'm all for the 
qemu-img resize version.

Kevin