NVIDIA: left KBUILD.
-> done.
-> Kernel module compilation complete.
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 is present and prevents the NVIDIA kernel module from
       obtaining ownership of the NVIDIA graphics device(s).
       
       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.
-> Kernel module load error: insmod: error inserting './usr/src/nv/nvidia.ko':
   -1 No such device
-> Kernel messages:
   NVRM: No NVIDIA graphics adapter probed!
   NVRM: The NVIDIA probe routine was not called for 1 device(s).
   NVRM: This can occur when a driver such as rivafb, nvidiafb or
   NVRM: rivatv was loaded and obtained ownership of the NVIDIA
   NVRM: device(s).
   NVRM: Try unloading the rivafb, nvidiafb or rivatv kernel module
   NVRM: (and/or reconfigure your kernel without rivafb/nvidiafb
   NVRM: support), then try loading the NVIDIA kernel module again.
   NVRM: No NVIDIA graphics adapter probed!
   NVRM: The NVIDIA probe routine was not called for 1 device(s).
   NVRM: This can occur when a driver such as rivafb, nvidiafb or
   NVRM: rivatv was loaded and obtained ownership of the NVIDIA
   NVRM: device(s).
   NVRM: Try unloading the rivafb, nvidiafb or rivatv kernel module
   NVRM: (and/or reconfigure your kernel without rivafb/nvidiafb
   NVRM: support), then try loading the NVIDIA kernel module again.
   NVRM: No NVIDIA graphics adapter probed!
   NVRM: The NVIDIA probe routine was not called for 1 device(s).
   NVRM: This can occur when a driver such as rivafb, nvidiafb or
   NVRM: rivatv was loaded and obtained ownership of the NVIDIA
   NVRM: device(s).
   NVRM: Try unloading the rivafb, nvidiafb or rivatv kernel module
   NVRM: (and/or reconfigure your kernel without rivafb/nvidiafb
   NVRM: support), then try loading the NVIDIA kernel module again.
   NVRM: No NVIDIA graphics adapter probed!
ERROR: Installation has failed.  Please see the file
       '/var/log/nvidia-installer.log' for details.  You may find suggestions
       on fixing installation problems in the README available on the Linux
       driver download page at www.nvidia.com.