Bug#1065022: libglib2.0-0t64: t64 transition breaks the systems

[Helmut Grohne]

On Thu, Feb 29, 2024 at 06:53:56AM +0100, Paul Gevers wrote:
> Well, officially downgrading isn't supported (although it typically works)
> *and* losing files is one of the problems of our merged-/usr solution (see
> [1]). I *suspect* this might be the cause. We're working hard (well, helmut
> is) to protect us and our users from loosing files on upgrades. We don't
> protect against downgrades.

As much as we like blaming all lost files on the /usr-move, this is not
one them. If you are downgrading from to a package that formerly has
been replaced, you always have lost files and you always had to
reinstall the package.

While t64 has quite some interactions with the /usr-move, I am closely
monitoring the situation have have been filing multiple bugs per day
recently about the relevant peculiarities. I don't think any of the
fallout we see here is reasonably attributable to /usr-move. The most
recent practical issues I've seen was related to image building tools
such as live-build and grml. When it comes to lost files, we're not
addressing them based on user reports (as there are practically none),
but on rigid analysis preventing users from experiencing them in the
first place.

Helmut