[Pkg-libvirt-maintainers] Bug#1064126: libvirt: install NSS modules into /usr

[Michael Biebl]

Hi Andrea

Am 26.02.24 um 00:28 schrieb Andrea Bolognani:
> On Sun, Feb 25, 2024 at 08:05:36PM +0100, Michael Biebl wrote:
>> Am 25.02.24 um 19:30 schrieb Andrea Bolognani:
>>> So what I'm wondering right now is, how much does libvirt shipping
>>> these files outside of /usr for a while longer negatively impact the
>>> overall transition plans? I'd be happy to get out of your way as soon
>>> as possible, but at the same time I'm wary of potentially introducing
>>> issues due to the unforeseen interactions between these changes.
>>
>> It depends on what you understand with "a while longer".
>> A couple more weeks/months/years/Debian releases?
> 
> Definitely not a couple of years or releases! My aim is to make
> modular daemons available in trixie.
> 
>> Obviously I think the sooner we get the usrmerge transition finished in
>> trixie, the better, to be able to iron out any unforeseen issues.
> 
> Right there with you. I just don't want to rush things, especially
> since AFAIK some really problematic scenarios can be triggered when
> paths are canonicalized at the same time as they are moved across
> binary packages.

This is correct. Moving files between packages and from / to /usr at the 
same time corresponds to the file loss scenario described at
https://subdivi.de/~helmut/dep17.html as P1.
See also
https://udd.debian.org/cgi-bin/bts-usertags.cgi?user=helmutg%40debian.org&tag=dep17p1


> Going forward, I will focus all the time I can spend on Debian on
> reorganizing the libvirt package to enable modular daemons. I hope to
> have at least a rough implementation ready within a few weeks.

I don't think postponing the usr-merge changes helps mitigating any 
issues since those need to happen for trixie in one way or another.

My recommendation is to upload the current patch in this bug report 
soon, and do the package re-organisation later  via an upload to 
experimental.
dumat will then pick up any potential issues.
See the recommendations in https://wiki.debian.org/UsrMerge

Regards,
Michael
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