Owners Manual

GHES: Generic hardware error source: 32994 notified via NMI is not supported!
GHES: Generic hardware error source: 227 notified via NMI is not supported!
Workaround This will be xed in a future release of Red Hat Enterprise Linux.
Cause This issue occurs because Non Maskable Interrupt (NMI) is not supported.
Resolved issues in Red Hat Enterprise Linux 6.1
Graphical boot splash screen in the UEFI mode is in low
resolution
Description On systems that boot through UEFI, the bootsplash (Plymouth) screen may be displayed in a lower resolution after
successful installation of the operating system.
Workaround This issue is seen only during bootup and does not aect X-Windows startup or GNOME/KDE.
Cause This issue occurs due to the way the console is initialized in the UEFI mode by the operating system.
PERC H700 DIMM failure messages with the debug kernel
Description
While booting with the debug kernel (kernel-debug-2.6.32-71.el6) on a system with PowerEdge RAID Controller
(PERC) H700, the controller initialization displays the following DIMM-related error messages on the console:
Multibit ECC errors were detected on the RAID controller. The DIMM on the
controller needs replacement. Please contact technical support to resolve this
issue.
Workaround
To continue booting to the debug kernel, press <X>.
This issue does not aect the booting of the default Red Hat Enterprise Linux 6 kernel (kernel-2.6.32-71.el6).
Cause The megaraid_sas driver resets the PERC H700 controller leaving the controller in an unknown state.
Network devices enumerated in an incorrect order
Description
On certain PowerEdge systems, such as PowerEdge 2950, R905, R805, R900, and R300 that have an add-in
network adapter plugged in a PCIe slot, eth0 in the operating system does not always map to the Gb1 port as
labeled on the chassis. The add-in network adapter may map to eth0.
Workaround
Pass the driverload=<module name of the network driver for the LOM> command line option
to the installer while booting from the Red Hat Enterprise Linux 6 media. Passing this command option ensures
that the driver for the onboard network adapters loads before other network driver modules.
For example, on PowerEdge systems, the driverload is bnx2.
NOTE: Do not use the driverload option if you do not use your onboard network adapters.
Cause This issue is caused due to a race condition during the parallel loading of modules by udev.
Installation instructions and important information 31