Owner's Manual

Installation Instructions and Important Information 15
3 Create a directory on the local hard drive for the Red Hat Enterprise Linux
4 update 9 files. Copy the Red Hat Enterprise Linux 4 update 9 files to this
location, or mount the network share containing the Red Hat Enterprise
Linux 4 update 9 files.
4 Modify the /etc/sysconfig/rhn/sources file to point to the local directory (or
share).
5 Execute up2date -uf to complete the installation procedure.
Obtaining the DKMS Framework for Device Drivers
All Dell add-on device driver packages which are not on the Red Hat
media use the Dynamic Kernel Module Support (DKMS) framework.
This framework allows the kernel modules to be dynamically built for each
kernel on your system and provides a mechanism for driver version control. You
can download the DKMS framework and the latest Dell device drivers from
support.dell.com.
To see which add-on device drivers are installed on your system, type dkms
status at the command prompt. For more information on DKMS, view the
DKMS man page on your system.
Important Information
This section contains information about software fixes, issues you may
encounter, and other information you may need while using Red Hat
Enterprise Linux on your Dell system.
General Issues
IPMI Commands Result in High CPU Utilization
On Dell PowerEdge systems managed through IPMI, IPMI commands issued
to the BMC could result in the kipmid thread consuming high CPU time.
This can be addressed with the driver option – kipmid_max_busy_us to the
ipmi_si driver module.
This option can be set by creating a file /etc/modprobe.d/ipmi.conf with the
following line and reloading the ipmi_si module:
options ipmi_si kipmid_max_busy_us=300
RHELIIG.book Page 15 Thursday, April 14, 2011 12:15 PM