Users Guide

Cause This issue occurs when you install a Red Hat Enterprise Linux 5 Update 2 operating system on a

remote iSCSI LUN and boot the LUN using an iSCSI Boot capable NIC. This issue occurs only

when the target iqn name has a short section at the end. For example, iqn.1984-05.com.dell:dell.

Power Management May Cause Problems To USB Devices

Description Certain low and full speed USB devices such as keyboard, mouse, and so on, may behave

unpredictably when system power management is enabled on AMD processor-based systems.

Workaround Turn off power management services.

AMD Power Management Module (powernow k8) Reports The Total Number Of Processor

Cores

Description When the powernow-k8 driver is loaded on an AMD multi-core processor‑based system, the

driver reports the total number of cores in the system followed by the processor model name in

the system log (/var/log/messages). The processor model name may contain the words

Dual‑Core. The number preceding Dual-Core represents the total number of cores in the

system and not the number of processors.

Issues Fixed In Red Hat Enterprise Linux 5 Update 2

This section contains information about general issues, resolutions, and their workarounds when using Red Hat

Enterprise Linux 5 Update 2 on your Dell system.

Red Hat Enterprise Linux 5 With DBS Enabled May Cause The System To Stop Responding

During Shutdown

Description Dell PowerEdge systems may stop responding during shutdown if Demand Based Switching

(DBS) is enabled in the BIOS.

Workaround On systems running Red Hat Enterprise Linux 5, it is recommended that you disable DBS in the

BIOS to avoid this issue.

Cause This is caused because of certain locking issues with the cpufreq driver in the Red Hat

Enterprise Linux 5 kernel. The system stops responding after all the file systems are un-

mounted so there is no data loss. This issue can occur on all Red Hat Enterprise Linux 5 kernels

including and up to Red Hat Enterprise Linux 5 Update 1.

LED Errors On USB Keyboards

Description The Num Lock/ Scroll Lock LED on some USB keyboards though enabled in the BIOS does not

function in the operating system as expected. Even if the Num Lock LED is illuminated, the

Numeric Keypad is not functional immediately after the kernel loads.

Workaround A few minutes after the system is turned on, the LEDs and the keypad functions are in sync.