Appendix E.
Additional Boot Options
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 z/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=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 xhost
+remotehostname, where remotehostname is the name of the host from which you are
running the original display. Using the command xhost +remotehostname limits access
to the remote display terminal and does not allow access from anyone or any system not
specifically authorized for remote access.
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.
noprobe
This command disables hardware detection and instead prompts the user for hardware informa-
tion.
rescue
This command runs rescue mode. Refer to the Red Hat Enterprise Linux System Administration
Guide for more information about rescue mode.
text
This command disables the graphical installation program and forces the installation program to
run in text mode.
vnc
This command allows you to install from a VNC server.
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