b. Choose your relevant package depending on your host operating system.
c. Click the desired ISO/tgz package.
d. To obtain the download link, accept the End User License Agreement (EULA).
3. Use the md5sum utility to confirm the file integrity of your ISO image. Run the following command and
compare the result to the value provided on the download page.
md5sum MLNX_OFED_LINUX-<ver>-<OS label>.iso
4.1.3 Installing Mellanox OFED
4.1.3.1 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.
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