I installed 64 bit Ubuntu 12.04 LTS and the computer won't boot. This is a Dell Precision Workstation 690 computer, which has a BIOS dated in 2006. It was running
Red Hat EL 4 quite well. The Ubuntu installation proceeded without any problems. After installing Ubuntu 12.04, it has the following messages:
Controller Bus #00, Device#1F, Function#02: 00 Ports No device found AHCI BIOS not installed
I tried switching from
ATA in the BIOS, which eliminated these particular messages, but it still wouldn't boot.
What can I do to get this computer to boot with 12.04?