SCO OpenServer Handbook
Chapter 3, Troubleshooting the installation

Hardware does not work

Hardware does not work

If some hardware (for example, a tape drive) does not work with the software installed, but it works under another operating system, the hardware may not be supported by the product or might not be configured correctly. 

Refer to the SCO Hardware Compatibility Handbook or SCO's Compatible Hardware Web Pages for information on the hardware that you can use with this product.