yum problem after bad shutdown

[Timothy Murphy]

Tim wrote:

>> Since everything appears to be working perfectly well
>> the problem seems to me to lie in the yum database.
>> Is it possible to delete this and rebuild it?
>> I did run "sudo yum clean all" and "sudo yum makecache"
>> but this did not seem to affect matters.
> 
> It's the RPM database that tracks what's installed, that's updated when
> you install or remove packages.  There are ways to remake it, or check
> that it's accurate.

Thanks very much for your informative answer.
I guess I'll have to find how to re-build the RPM database.