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Appendix B.
Troubleshooting Your Installation of Red Hat
Linux Advanced Server
This appendix discusses some common installation problems and their solutions.
B.1. You are Unable to Boot Red Hat Linux Advanced Server
B.1.1. Is Your System Displaying Signal 11 Errors?
If you receive a fatal signal 11 error during your installation, it is probably due to a hardware error in
memory on your system's bus. A hardware error in memory can be caused by problems in executables
or with the system's hardware. Like other operating systems, Red Hat Linux Advanced ServerRed Hat
Linux Advanced Server places its own demands on your system's hardware. Some of this hardware
may not be able to meet those demands, even if they work properly under another OS.
Check to see if you have the latest installation and supplemental boot diskettes from Red Hat. Review
the online errata to see if newer versions are available. If the latest images still fail, it may be due to a
problem with your hardware. Commonly, these errors are in your memory or CPU-cache. A possible
solution for this error is turning off the CPU-cache in the BIOS. You could also try to swap your
memory around in the motherboard slots to see if the problem is either slot or memory related.
For more information concerning signal 11 errors, refer to:
http://www.bitwizard.nl/sig11/
B.2. Trouble Beginning the Installation
B.2.1. Problems with Booting into the Graphical Installation
The Red Hat Linux Advanced Server installation program uses frame buffers by default. However,
there are some video cards that will not work with this setting. The end result will be a problem
booting into the graphical installation program.
The installation program will first try to run in frame buffer mode. If that fails, it will try to run in a
lower resolution mode. If that still fails, the installation program will run in text mode.
Users who have video cards that will not run at 800 x 600 resolution should type lowres at the
prompt to run the installation program in 640 x 480 resolution.
boot:
If this still does not work, you can run the installation program without frame buffers by typing nofb
at the
prompt.
boot:
B.2.2. Is Your Mouse Not Detected?
If the Mouse Not Detected screen (see Figure B-1) appears, then the installation program was not
able to identify your mouse correctly.
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