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A Red Hat training course is available for Red Hat Enterprise Linux

Chapter 21. Troubleshooting Installation on an IBM System z System

This appendix discusses some common installation problems and their solutions.

21.1. You are Unable to Boot Red Hat Enterprise Linux

21.1.1. Is Your System Displaying Signal 11 Errors?

A signal 11 error, commonly know as a segmentation fault, means that the program accessed a memory location that was not assigned to it. A signal 11 error may be due to a bug in one of the software programs that is installed, or faulty hardware.
Ensure that you have the latest installation updates and images from Red Hat. Review the online errata to see if newer versions are available.