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Date: Wed, 12 Sep 2018 15:44:02 +0800
From: Fam Zheng <famz@redhat.com>
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Subject: Re: [Qemu-devel] Can I convert backing file to internal snapshot?
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To: lampahome <pahome.chen@mirlab.org>
Cc: QEMU Developers <qemu-devel@nongnu.org>

On Wed, 09/12 15:35, lampahome wrote:
> I have two qcow2 A & B, and A is backing file of B.
> 
> Can I convert both A&B to one image and containing data of both?
> 
> ex:
> one new image will contain data of A and B. When I check it by qemu-img
> info, I can see one snapshot in the new image.

I believe it's possible to create an internal snapshot in A and then qemu-img
commit B to A. From here, the active content is B, and the snapshot is A.

Fam