Users Guide

Information Update 25
Operating System Information
Enumeration of NICs
Linux operating system versions that use the udev kernel device manager
enumerate the NICs differently than earlier Linux versions that used the
devfs device manager. Although this does not affect system functionality,
when using Red Hat
®
Enterprise Linux
®
(version 4 or version 5) or SUSE
®
Linux Enterprise Server 9 or 10 operating systems, the NICs are enumerated
in reverse: NIC1 is configured as eth1 instead of eth0, and NIC2 is configured
as eth0 instead of eth1. For information on how to change the default device
enumerations, see the "Network Interface Card Naming" white paper
available at linux.dell.com.
RHEL – Incorrect Processor Information
• If an Intel Xeon 54xx processor is installed in a system running RHEL
Version 4 Update 5 and Demand-Based Switching is enabled in the BIOS,
cat/proc/cpuinfo and
cat/sys/devices/system/cpu/cpuxx/cpufreq/scaling_
cur_freq
displays an incorrect processor frequency. (The actual
processor speed is not affected.)
• If an Intel Xeon 54
xx processor is installed in a system running RHEL
Version 3 Update 9, incorrect processor information is displayed in
/proc/cpuinfo . (The actual processor speed is not affected.)
This behavior will be corrected in a future RHEL 4 Update.
System Support for Microsoft Windows 2000
If you run the System Build and Update Utility, Microsoft
®
Windows
®
2000
is included in the list of operating systems on the Server OS Install tab.
This operating system is supported by the PowerEdge 1950 and 1950 II
systems, but not by the PowerEdge 1950 III system.