[Rpm-maint] RFC: Relocate RPM and DNF databases to /usr

[Panu Matilainen]

On 12/16/21 00:34, Florian Weimer wrote:
> * Chris Murphy:
> 
>> Fedora 36 seems like a good time to do this. What do you think?
> 
> It's a bit odd to locate a database under /usr that isn't pre-built and
> installed.  I guess in theory there could be systems with a read-only
> /usr out there that still allow installation of packages into /opt.

It does seem strange and downright blasphemous at first yes, but 
whenever rpm is in operation /usr will need to be read-write anyway. And 
since that the db data actually describes the data on disk, rather than 
being an activity log or such, there is a case to be made for rpmdb 
being on /usr.

> Does it really help to improve the snapshot situation?  What about
> software under /opt?  Maybe this needs multiple RPM databases
> eventually, roughly aligned along file system boundaries.

Packages can and do cross filesystem boundaries in unpredictable ways, 
multiple rpmdb's is mostly just a problem in itself...

	- Pabnu -
> 
> Thanks,
> Florian
> 
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