Resolving conflicts with the IMM LAN over USB interface
Use any of the following actions to resolve LAN over USB conflicts with network
configurations and applications.
v For conflicts with Open MPI, configure the application so that it does not
attempt to use this interface.
v Take down the interface (run ifdown under Linux).
v Remove the device driver (run rmmod under Linux).
v Disable the LAN over USB interface from the advanced management module
Web interface:
1. Log in to the AMM Web interface.
2. In the navigation pane, click Blade Configuration under the Blade Tasks
heading.
3. Scroll down to the Service Processor LAN over USB interface on the Blade
Configuration web page. The section lists all blades in the chassis that can
enable or disable the LAN over USB interface.
4. Select the check boxes next to the blade servers that you want to enable or
disable.
5. Click Disable to disable the LAN over USB interface on the selected blade
servers.
Configuring the LAN over USB interface manually
An IMM must be configured to use the LAN over USB interface. The firmware
update package or Advanced Settings Utility attempt to perform the setup
automatically, if needed. If the automatic setup fails or if you prefer to set up the
LAN over USB manually, use one of the following processes.
For more information about LAN over USB configuration on different operating
systems, see the IBM white paper Transitioning to UEFI and IMM at
http://www.ibm.com/systems/support/supportsite.wss/
docdisplay?brandind=5000008&lndocid=MIGR-5079769.
Installing the LAN over USB Windows device driver
When you install a Windows operating system, there will be an unknown RNDIS
device in the Device Manager. IBM provides a Windows INF file that identifies this
device. The signed version of the INF file is included in all of the Windows
versions of the IMM, UEFI, and DSA update packages. Complete the following
steps to install ibm_rndis_server_os.inf.
Note: You only have to perform these steps if the server is running a Windows
operating system and the ibm_rndis_server_os.inf file has not been previously
installed. The file only has to be installed once. It is required by Windows
operating systems to detect and use the LAN over USB functionality.
1. Obtain a Windows version of the server UEFI code package (see “Updating
firmware and device drivers” on page 82 for more information).
2. Extract the ibm_rndis_server_os.inf and device.cat files from the firmware
update package and copy them to the \WINDOWS\inf subdirectory.
Note: You can use the -x path command-line interface option to extract the
files. For more information about this option, see the readme file that comes
with the update package.
108 IBM BladeCenter HX5 Type 7873, 7872, 1910, and 1909: Installation and User's Guide
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