Red Hat ENTERPRISE LINUX AS 2.1 - Instalační příručka stáhnout pdf (Strana 53)

Appendix D.

Troubleshooting Your Installation of Red Hat

Enterprise Linux

This appendix discusses some common installation problems and their solutions.

D.1. You are Unable to Boot Red Hat Enterprise Linux

D.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.

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 Enterprise Linux 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.

Ensure that you have the latest installation updates and images 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.

D.2. Trouble During the Installation

D.2.1. No devices found to install Red Hat Enterprise Linux

Error Message

If you receive an error message stating No devices found to install Red Hat Enterprise

Linux, then there may be an issue with your DASD devices. If you encounter this error, add the

DASD=<disks> parameter to your parm ﬁle (where disks is the DASD range reserved for instal-

lation), and start the install again.

Additionally, make sure that you format the DASDs using the dasdfmt command within a Linux root

shell, instead of formatting the DASDs using CMS.

D.2.2. Trouble with Partition Tables

If you receive an error after the Disk Partitioning Setup (Section 2.11 Disk Partitioning Setup) phase

of the installation saying something similar to

The partition table on device hda was unreadable. To create new partitions it must be initialized,

causing the loss of ALL DATA on this drive.

you may not have a partition table on that drive or the partition table on the drive may not be recog-

nizable by the partitioning software used in the installation program.

No matter what type of installation you are performing, backups of the existing data on your systems

should always be made.

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Red Hat ENTERPRISE LINUX AS 2.1 - Instalační příručka Strana 53