Ubuntu doesn't boot - 'Loading operating system' message at startup

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http://askubuntu.com – I loaded Ubuntu 11.10 from an install CD (purchased CDs) and when the system tries to boot up I get a long delay with a flashing cursor followed by the "Loading Operating System ..." statement that never loads my operating system. I am using a GA880GA-UD3H Motherboard with a Phenom II X6 1055T processor, 16 GB (active) RAM, a Hitachi 4TB Deskstar HDD and (2) LG Blu-ray Disc Rewrite BD drives. I loaded a windows 7 version on a 1TB HDD and everything works fine. When I place the 4TB HDD into the system, and load ubuntu, the system does not boot. I want a UNIX only environment (not dual boo (HowTos)