RedHat

Describe RedHat here.

With RHEL 5 Red Hat introduced "Installation Numbers", here are the ones I could find for desktops.

Red Hat Desktop Extension Pack (Basic)

ec5e1fe2ec1e5c1e

c3d5252ac3956524

eeecafedeeacecae

Red Hat Enterprise Linux WS HPCC (Basic)

ff221519ff6e5414

660cb13d6640f4b0