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Installing Mellanox OFED

Installation Script

The installation script,mlnxofedinstall, performs the following:

Discovers the currently installed kernel

Uninstalls any software stacks that are part of the standard operating system distributionor

another vendor's commercial stack

Installs the MLNX_OFED_LINUX binary RPMs (if they are available for the currentkernel)

Identifies the currently installed InfiniBand and Ethernet network adapters and automatically

upgrades the firmware.

Note:The firmware will not be updated if you run the install script with the ‘--without-fw-

update’ option.

Note: If you wish to perform a firmware upgrade using customized FW binaries, you canprovide

a path to the folder that contains the FW binary files, by running--fw-image-dir. Using this

option, the FW version embedded in the MLNX_OFED package will beignored.Example:

./mlnxofedinstall --fw-image-dir /tmp/my_fw_bin_files

Usage

./mnt/mlnxofedinstall [OPTIONS]

The installation script removes all previously installed Mellanox OFED packages and re-installs from

scratch. You will be prompted to acknowledge the deletion of the old packages.

If you need to install Mellanox OFED on an entire (homogeneous) cluster, a commonstrategy is

to mount the ISO image on one of the cluster nodes and then copy it to ashared file system such

as NFS. To install on all the cluster nodes, use cluster-awaretools (such as pdsh).

If your kernel version does not match with any of the offered pre-built RPMs, you canadd your

kernel version by using the “mlnx_add_kernel_support.sh” script locatedinside the

MLNX_OFED package.

The “mlnx_add_kernel_support.sh” script can be executed directly from the mlnxofedinstall

script. For further information, please see '--add-kernel-support' option below.

Pre-existing configuration files will be saved with the extension “.conf.rpmsave”.



On Redhat and SLES distributions with errata kernel installed there is no need to use

the mlnx_add_kernel_support.sh script. The regular installation can be performed and

weak updates mechanism will create symbolic links to the MLNX_OFED kernel

modules.



On Ubuntu and Debian distributions drivers installation use Dynamic Kernel Module

Support (DKMS) framework. Thus, the drivers' compilation will take place on the host

during MLNX_OFED installation. Therefore, using "mlnx_add_kernel_support.sh" is

irrelevant on Ubuntu and Debian distributions.



Nvidia Mellanox User Manual

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