[Piuparts-devel] Bug#1092667: piuparts fails on debconf: Package purging left files on system: /var/cache/debconf/tmp.ci/ not owned

[Helmut Grohne]

Package: piuparts,debconf

I was testing a seemingly unrelated package (libzfs6linux in my case, it
does not depend on debconf) with piuparts and am faced with a failure
that seems disconnected:

| 0m12.8s ERROR: FAIL: Package purging left files on system:
|   /var/cache/debconf/tmp.ci/     not owned
| 
| 0m12.8s ERROR: FAIL: Installation and purging test.

As I understand things, my initial chroot did not contain that empty
directory. Then my installation+purge test employed debconf in some way
and debconf left it around due to #1028128. It being left behind feels
vaguely intentional, but it still confuses piuparts.

The problem here is that this situation makes unrelated packages fail
piuparts testing. In principle, that should affect all packages, so it
would be widely known and making everyones tests fail. Obviously, that's
not the case, so something about my setup is special. I'm using a chroot
generated using mmdebstrap rather than debootstrap and that may be the
thing that's special.

Either way, I'd appreciate if debconf and piuparts could agree on
whether /var/cache/debconf/tmp.ci should be left behind.

Thanks in advance

Helmut