Just press F5 after the first screen asking
if you have raid devices to install (will ask at
bottom of screen to press F6) keep pressing F5 to second screen where it will ask to press F2 for recovery console. Keep holding F5 and should get another screen where it will say that it cannot recognize type of pc. There you have two choices: standard pc and other. Select standard and voila no ACPI will be installed.

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