1 Reply Latest reply on Feb 20, 2014 5:23 AM by yairi

    Ubuntu: Load drivers at boot


      Hi, Just installing the latest MLNX_EN 2.1-1.0.0 drivers on Ubuntu 13.04.  The install seems to have gone smoothly and it is nice to have the latest drivers on this release.  One thing I was baffled with was loading the drivers at boot.  After a bit of investigation, I found that the issue is the "mlnx-en" upstart job is trying to unload the drivers that ship with ubuntu prior to loading the newly installed drivers.


      At least in my case, the drivers were not loaded when the upstart job was initiated and trying unload the driver module resulted in an error:


      libkmod: ERROR ../libkmod/libkmod-module.c:753 kmod_module_remove_module: could not remove 'mlx4_core': No such file or directory


      The fix was to add "|| true" to the "modprobe -r" statement in the upstart script (/etc/init/mlnx-en.conf) as follows:


      --- mlnx-en.conf.orig     2014-02-13 14:28:37.937571635 -0600
      +++ mlnx-en.conf     2014-02-13 14:28:57.089572169 -0600
      @@ -43,7 +43,7 @@ pre-start script
                 /sbin/modprobe $module > /dev/null 2>&1
      -     /sbin/modprobe -r mlx4_core
      +     /sbin/modprobe -r mlx4_core || true
            load_module mlx4_core
            load_module mlx4_en
            # Bring up network interfaces


      Hopefully this will help someone else that encounters this issue.  -- Bud