After upgrading two entirely different systems from 5.2 to 6.0, I noticed that quite a few packages would not work properly due to missing files. Please do an rpm --verify -a after attempting such an upgrade. You will find hosts of missing files. I have the suspicion that there is a correlation between packages that install .rpmorig files and this phenomenon, but at least with the tetex-latex package, which is missing wagonloads of files after the upgrade, no .rpmorig file was noted in the upgrade log. This upgrade bug seems to me to be the source for bug report 2080, too. Affected packages can be reinstalled with rpm -U --force About a dozen different and unrelated packages are affected. Since this affects every upgrade from 5.2 to 6.0, the severity is rather high as it causes hundreds of thousands inconsistent RedHat 6.0 systems. Please add upgrades to your release testing. As verifying an upgraded system is a single call of rpm, this is cheap to do. I have flagged this as an i386 error since that is the system I use. Thius does not mean that other architectures might not also be affected.
*** This bug has been marked as a duplicate of 2727 ***