I'm trying to put knoppix on an old computer but when I try to boot it I get the following error(s):

ACPI: Unable to locate RSDP
PCI: Cannot allocate resource region 0 of device 00:14.0
PCI: Cannot allocate resource region 1 of device 00:14.0
PCI: Cannot allocate resource region 2 of device 00:14.0

Then...

Can't find KNOPPIX filesystem, sorry.
Dropping you into a (very limted) shell.
Press reset button to quit.

The computer has an American Megetrends Inc BIOS. The CD works on my regular desktop and laptop.