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NVIDIA GPUs that have nvlink support (for eg: A100) will need the nvidia-fabricmanager system extension also enabled in addition to the NVIDIA drivers. For more information on Fabric Manager refer https://docs.nvidia.com/datacenter/tesla/fabric-manager-user-guide/index.html The published versions of the NVIDIA fabricmanager system extensions is available here
The nvidia-fabricmanager extension version has to match with the NVIDIA driver version in use.

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Enabling the NVIDIA fabricmanager system extension

Create the boot assets or a custom installer and perform a machine upgrade which include the following system extensions: Patch the machine configuration to load the required modules: 
machine:
  kernel:
    modules:
      - name: nvidia
      - name: nvidia_uvm
      - name: nvidia_drm
      - name: nvidia_modeset