After installing rh5.9 on a box here, I found that there was no /usr/lib/rpm/rpmrc, which meant I couldn't install any new rpms. This is either a problem with the installer, or the installation of rpm. In any case, my solution was to switch to terminal 2 and copy the rpmrc file the installer appeared to be using to /usr/lib (There was one in /usr/lib/rpm during the installation, but not in /mnt/usr/lib/ during the installation).
*** This bug has been marked as a duplicate of 1974 ***