Appendix A. General Parameters and Modules

This appendix is provided to illustrate some of the possible parameters available for common hardware device drivers[1], which under Red Hat Linux are called kernel modules override module's default parameters for the device.

different types of hardware, some drivers (including those for SCSI adapters, network adapters, and many CD-ROM drives) are not included in the installation kernel. Rather, they must be loaded as modules by the user at boot time. For information on where one can find extra kernel modules during the installation process, refer to the section concerning alternative boot methods in the chapter titled Steps to Get You Started in the Red Hat Linux Installation Guide.

Once installation is completed, support exists for a large number of devices through kernel modules.

A.1. Specifying Module Parameters

• Specify a full set of parameters in one statement. For example, the parameter cdu31=0x340,0 could be used with a Sony CDU 31 or 33 at port 340 with no IRQ.

• Specify the parameters individually. This method is used when one or more parameters in the first set are not needed. For example, cdu31_port=0x340 cdu31a_irq=0 can be used as the parameter for the same CD-ROM. An OR is used in the CD-ROM, SCSI, and Ethernet tables in this appendix to show where the first parameter method stops and the second method begins.

	Note
	Only use one method, and not both, when loading a module with specific parameters.

	Caution
	When a parameter has commas, be sure not to put a space after a comma.