Additional Boot Options - Red Hat ENTERPRISE LINUX 3 - INSTALLATION GUIDE FOR IBM S-390 AND IBM ESERVER ZSERIES Installation Manual

This appendix discusses additional boot and kernel boot options available for the Red Hat Enterprise
Linux installation program.
Add these boot options to the parameter file. For more information, refer to Section 1.5 Installing
under VM.
Boot Time Command Arguments
askmethod
This command asks you to select the installation method you would like to use when booting
from the Red Hat Enterprise Linux CD-ROM.
dd
This argument causes the installation program to prompt you to use a driver diskette.
dd=url
This argument causes the installation program to prompt you to use a driver image from a speci-
fied HTTP, FTP, or NFS network address.
display=IP:0
This command allows remote display forwarding. In this command, IP should be replaced with
the IP address of the system on which you want the display to appear.
On the system you want the display to appear on, you must execute the command
+remotehostname
running the original display. Using the command
to the remote display terminal and does not allow access from anyone or any system not
specifically authorized for remote access.
driverdisk
This command performs the same function as the
driver diskette during the installation of Red Hat Enterprise Linux.
mediacheck
This command gives you the option of testing the integrity of the install source (if an ISO-based
method). This command works with the CD, DVD, hard drive ISO, and NFS ISO installation
methods. Verifying that the ISO images are intact before you attempt an installation helps to
avoid problems that are often encountered during an installation.
mem=xxxM
This command allows you to override the amount of memory the kernel detects for the machine.
This may be needed for some older systems where only 16 MB is detected and for some new
machines where the video card shares the video memory with the main memory. When executing
this command, xxx should be replaced with the amount of memory in megabytes.
, where remotehostname is the name of the host from which you are

Additional Boot Options

xhost +remotehostname
command and also prompts you to use a
dd
Appendix E.
xhost
limits access