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

[Florian Weimer]

* 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.

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.

Thanks,
Florian