Scientific Linux 5 has reached its End of Life.

After March 31 2017 Scientific Linux 5 will not receive further updates 
and the files will be archived.

The existing files will be moved into 
http://ftp.scientificlinux.org/linux/scientific/obsolete/ for archival 
purposes after March 31 2017.

This will break existing yum repos and kickstarts using the official 
distribution servers.