If you are reading this, then its because you tried to use the rhel5 or rhel6 symlink under the *latest directory (or you are very curious). We have disabled these links due to known bugs during the upgrade process. Please use the release directories instead of the *latest directories to access the OSPs for RHEL 5 and 6. Please see the engineering release note in the docs directory (/docs/engineering-release-notes/rhel-upgrade) for more details. Thanks.