I have also attempted to boot the following distributions of Linux from USB keys and they all fail unless ACPI=off has been set.
CentOS 6.0 Fedora 15 Knoppix v6.7 Sabayon 7
I have also attempted to boot the following distributions of Linux from USB keys and they all fail unless ACPI=off has been set.
CentOS 6.0
Fedora 15
Knoppix v6.7
Sabayon 7