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Re: [Qemu-devel] "Hot" resizing QCow2 image using a simple python script
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] "Hot" resizing QCow2 image using a simple python script |
Date: |
Thu, 31 Dec 2009 15:16:07 +0100 |
User-agent: |
KMail/1.9.5 |
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