first what version of the older LEGACY RHEL5 is this ?
RHEL 5.10 is the current in the older legacy 5 series
Code:
cat /etc/redhat-release
also RHEL 5 and the current 6.5 are not free
you HAVE to buy the REQUIRED support contract !!!!
--- the desktop license--
https://www.redhat.com/apps/store/desktop/
also rhel5 is primarily for older LEGACY hardware ( think old xp computers from 2001 )
it has no support for NEW hardware
for new hardware install 6.5 and buy the required support contract
-- if you use Redhat then you have to buy the license it IS REQUIRED---
or
Use the FREE rebuild CentOS
install the current CentOS 6.5
or for OLD legacy hardware the current legacy CentOS 5.10