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Re: Detecting swapped images in backing chain via qemu-img
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From: |
Alberto Garcia |
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Subject: |
Re: Detecting swapped images in backing chain via qemu-img |
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Date: |
Thu, 24 Nov 2022 15:07:16 +0000 |
On Thu, Nov 24, 2022 at 01:04:17PM +0200, Plamen Dimitrov wrote:
> I apologize in advance if I am missing something obvious but if I
> have a backing chain like
>
> A <- B <- C
>
> and for some reason B is swapped with another very similar B layer,
> can qemu-img detect this in some way?
If you mean replacing B with another image with similar contents but
different from B (but the same metadata, backing chain information,
etc.), then no, because there's nothing wrong with that backing chain
from QEMU's point of view.
Berto