I've submitted an MR to fix this bug; however, there are at least two follow-on problems:
1) The uvtool-libvirt package is only half-configured upon system
deployment. This can be fixed manually by re-installing it or
doing "sudo apt dist-upgrade"; and
2) Bug #1932550 is causing failures because the test can't SSH in to
the KVM session;
I've submitted an MR to fix this bug; however, there are at least two follow-on problems:
1) The uvtool-libvirt package is only half-configured upon system
deployment. This can be fixed manually by re-installing it or
doing "sudo apt dist-upgrade"; and
2) Bug #1932550 is causing failures because the test can't SSH in to
the KVM session;
The uvtool-libvirt manual workaround is ugly and the underlying issue should be corrected. Bug #1932550 is proving difficult to resolve, and its fix may interact with an in-flight MR from jocave (https:/ /code.launchpad .net/~jocave/ plainbox- provider- checkbox/ +git/plainbox- provider- checkbox/ +merge/ 403636), which fixes an unrelated problem, but touches code that may need to be changed. (Or not; the solution might lie elsewhere, like in the virtual machine configuration.)
All of which is to say: The bug is now fixed, but the test will still fail on Bionic. See bug #1932550 for further developments....