This is the release of Scientific Linux 6 with Fermilab customizations.
Scientific Linux Fermilab 6 is a combination of Scientific Linux 6 and Fermilab specific packages.
The resultant install will look a lot like Scientific Linux 6.
Media
You can find the install media at:
Adding the Fermilab Packages to Other Releases
You can add the Fermilab packages with the following yum repo
[slf6]
name=SLF Fermi only packages
baseurl=http://linux1.fnal.gov/linux/fermi/slf6x/$basearch/os/FermiPackages/
gpgkey=http://ftp.scientificlinux.org/linux/fermi/slf6x/x86_64/os/RPM-GPG-KEY-sl http://ftp.scientificlinux.org/linux/fermi/slf6x/x86_64/os/RPM-GPG-KEY-sl6
gpgcheck=1
enabled=1