错误：无法加载内核模块'nvidia.ko'

  ERROR: Unable to load the kernel module 'nvidia.ko'.  This happens most
         frequently when this kernel module was built against the wrong or
         improperly configured kernel sources, with a version of gcc that
         differs from the one used to build the target kernel, or if a driver
         such as rivafb, nvidiafb, or nouveau is present and prevents the
         NVIDIA kernel module from obtaining ownership of the NVIDIA graphics
         device(s), or no NVIDIA GPU installed in this system is supported by
         this NVIDIA Linux graphics driver release.

         Please see the log entries 'Kernel module load error' and 'Kernel
         messages' at the end of the file '/var/log/nvidia-installer.log' for
         more information.