Owners Manual

Lifecycle Controller (USC based installation) deployment fails
when installing Red Hat Enterprise Linux 6.x
Description Lifecycle Controller OS Deployment fails with the error message install exited abnormally when
installing RHEL 6.x. The deployment fails when the number of RPMs in the disk drive is greater than 25.
Cause The installation fails when the number of RPMs in the disk drive is greater than 25. The explodeRPM() function
call in the anaconda code fails to free the resources. When the explodeRPM() function is called repeatedly (more
than 25 RPMs) without freeing the claimed resources, the anaconda loader stops functioning.
ethtool does not report 40 GB for Mellanox ConnectX-3 40 GB
adapter
Description On a Dell EMC PowerEdge Server with Mellanox ConnectX-3 40 GB adapter, ethtool does not report 40 GB in
Supported and Advertised link modes.
#ethtool p4p1
Settings for p4p1:
Supported ports: [ TP ]
Supported link modes: 10000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: No
Advertised link modes: 10000baseT/Full
Cause The ethtool utility in Red Hat Enterprise Linux 6 does not recognise 40 GB link modes.
Blurred display when changing resolution in Red Hat Enterprise
Linux 6.5
Description
On changing the display properties from a lower resolution to a higher resolution, the display becomes blurred
(example: 800 x 600 to 1024 x 768 or 1152 x 864). The issue occurs if the display is plugged either at the rear or
front VGA port.
Cause The resolution set by the user using the Display option is not compatible with the MGA driver resolution. Due to the
resolution mismatch, the Xorg crashes and the display screen appears blurred.
Resolved issues in Red Hat Enterprise Linux 6.5
Teamed NICs have no network connectivity
Description
When NICs are congured to bond, the teamed NICs do not connect to other devices on the network.
Workaround Congure the network without using Network Manager, and follow the Red Hat documentation for bonding NICs.
In the conguration les, specify the following command:
nm_controlled=no
Installation instructions and important information 21