On Jun 29, 2022, at 18:46, Michael D. Setzer II via users <users@lists.fedoraproject.org> wrote:

It is installed on all 4 machines, but 3 don't have the
yumdb directory??

The RPM spec file for dnf shows that it does own the yumdb directory in the dnf package, but it has the %ghost attribute, which means that it doesn’t actually include the actual files in the package.  

https://src.fedoraproject.org/rpms/dnf/blob/f36/f/dnf.spec#_300

This is done to make the RPM database know that it’s technically part of the package, but not to actually include any files in the package distribution.  Usually this is because they’re user generated and ephemeral, like what is happening here.

I suspect this is left over from some Fedora system upgrade and no longer used. I don’t have a device handy to look at the source to see why the %ghost attribute was added, but I suspect you can just delete it and it’ll operate fine.  At least make a tarball of it and try removing it to see if it is ok without it.

-- 
Jonathan Billings