I converted a Fedora Core 6 system to Fedora 7 and then applied a
bunch of update RPMS by hand using the rpm program.
Now when I run pup or yum check-update it doesn't show anything
as needing updating; yet I know there are lots of more recent updates
out there. What's wrong? I guess there is probably some file I
need to remove and recreate to get the updates to be detected.