General Parameters And Modules; Specifying Module Parameters; Scsi Parameters - Red Hat ENTERPRISE LINUX 3 Reference Manual

This appendix is provided to illustrate some of the possible parameters available for common hardware
device drivers 1 , which under Red Hat Enterprise Linux are called kernel modules. In most cases,
the default parameters will work. However, there may be times when extra module parameters are
necessary for a device to function properly or to override the module's default parameters for the
device.
During installation, Red Hat Enterprise Linux uses a limited subset of device drivers to create a stable
installation environment. Although the installation program supports installation on many different
types of hardware, some drivers (including those for SCSI adapters and network adapters are not
included in the installation kernel. Rather, they must be loaded as modules by the user at boot time. For
information about 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 Enterprise Linux
Installation Guide.
Once installation is completed, support exists for a large number of devices through kernel modules.
Important
Red Hat provides a large number of unsupported device drivers in a group of packages called
kernel-unsupported- kernel-version
kernel-hugemem-unsupported- kernel-version
sion of the kernel installed on the system. These packages are not installed by the Red Hat Enterprise
Linux installation program, and the modules provided are not supported by Red Hat, Inc..
A.1. Specifying Module Parameters
In some situations, it may be necessary to supply parameters to a module as it is loaded for it to
function properly.
For instance, to enable full duplex at 100Mbps connection speed for an Intel Ether Express/100 card,
load the driver with the
e100
Caution
When a parameter has commas, be sure not to put a space after a comma.
A.2. SCSI parameters
Hardware
3ware Storage Controller
1. A driver is software which enables Linux to use a particular hardware device. Without a driver, the kernel
can not communicate with attached devices.

General Parameters and Modules

,
kernel-smp-unsupported- kernel-version
e100_speed_duplex=4
Module
3w-xxxx.o
. Replace
kernel-version
option.
Parameters
Appendix A.
, and
with the ver-