RHEL 6.0 enterprise intallation probelm on hp gen8 server

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http://serverfault.com – i am unable to install rhel 6 enterprise edition on hp dl380p gen8 server. with a p420i raid controller with 512 mb cache. whenever i boot from my media.. after asking for language and keyboard type.. it say NO DRIVER FOUND. assist me what to do and how to do it . (HowTos)