Bug#842299: autopkgtest-virt-qemu: attaching base image makes btrfs very confused

Christian Seiler christian at iwakd.de
Sun Oct 30 20:30:18 UTC 2016

On 10/30/2016 09:25 PM, Martin Pitt wrote:
> Christian Seiler [2016-10-30 20:04 +0100]:
>> Also, just because I'm the only one that's implemented nested tests
>> so far
> BTW, you are probably be the only one who uses the nested base image
> -- but I've seen several tests that use nested QEMU. Just that they
> usually download a current cloud image themselves, i. e. that's rather
> expensive (but in exchange that also works for the ssh runner).

Interesting. In my case using a cloud image doesn't help much,
because for open-iscsi the target (i.e. "server") also needs
isolation-machine. Because of this I do need to use qemu virt anyway,
so I may as well rely on the presence of the baseimage.

(There's no userspace-only iSCSI target implementation available,
same as there isn't any userspace NFS server available anymore
either. My guess is that this is for performance reasons and just
supporting an implementation for testing purposes is probably a
waste of resources.)


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