On Sat, 27 Jan 2018 22:45:37 +0100 Martin Pitt <[email protected]> wrote:

[...]
> Johannes Schauer [2018-01-12 14:27 +0100]:
[...]
> > When I added the autopkgtest backend to sbuild in addition to schroot, I did
> > this with the long term goal in mind that at some point I could also update 
> > the
> > sbuild-update program to support the autopkgtest backend.
> 
> It's not what I would recommend doing actually, as with backends like LXC, 
> lxd,
> or qemu it's actually more reliable and presumably not even slower to just
> download a current daily image than upgrading existing ones. With schroots it
> makes a lot more sense, but there's already mk-sbuild for that job. Of course
> you can work with upgraded testbeds, but by nature they are less reliable.

Hello,
I am a "passerby" with respect to this bug report, so to speak.

I would like to ask a question: Martin, do I understand correctly that
you are saying that recreating the QEMU/KVM testbed from scratch (with
autopkgtest-build-qemu) is faster than upgrading an existing QEMU/KVM
testbed? Despite the debootstrap step, which is notoriously slow?!?

Johannes, have you found a solution in the meanwhile?


P.S.: please bear with me: I am trying to figure out how to use
autopkgtest with QEMU/KVM testbeds and I am probably still a bit too
ignorant, but I failed to find some explanations in the documentation...


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