installing cuda 5 on ubuntu 12.04

1. Download CUDA 5 installers from https://developer.nvidia.com/cuda-downloads.
2. Add execution mode to the run file.
   • $ chmod +x cuda_5.*.run
3. Change to terminal mode Ctrl-Alt-F1, log on and type
   • $ sudo service lightdm stop
   • $ sudo ./cuda_5.*.run
   • $ sudo shutdown -r now

If you failed to get back to login gui, type this:

• $ sudo apt-get purge nvidia*
• $ sudo apt-get install nvidia-current-updates-dev