Just tried to boot up an old computer and came up with this error, googled it and no help =/
OP... this might sound like a stupid quesiton, but have you checked within the BIOS that you have the dvd / cd drive as the 1st boot option? I just resolved this same very issue on a buddies computer. He had some how damaged his boot loader / mng and once in the BIOS I switched his DVD drive to boot first and off we were! In our case it was a mear repair in your's an install of course... Hope that helps!