Currently, I get the following error when running this test.

registering closures...
error: initialising database schema: disk I/O error
ERROR: In procedure scm-error:
ERROR: failed to register store items "/xchg/system"


I also need the patch from
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=28273 otherwise I can't
even run the test.

Danny, I guess you have been looking at installing from an ISO image as
well, as I spotted you added it to the release target. Have you been
able to successfully use it yet?

When attempting to use it initially, I encountered a problem where a
glibc in the store was partially deleted. /var/guix/db/db.sqlite also
initially didn't exist, which the WIP patch here attempts to address.