Originally Posted by joffe
first login as your ordinary user then
sudo /etc/init.d/gdm stop
this will effectively shut down the respawning gdm, or X session.
Now you'll be able to install the driver (make sure you have the relevant kernel header files). When the install has finished and xorg.conf is edited to load the nvidia module, just run
sudo /etc/init.d/gdm start
IMHO the above is overly complex and system-specific. And you will need to login as root to install the driver anyway.
Just Ctrl-Alt-F1 to the first screen, login as root, and type:
The init system will do exactly what is required to stop X on the given system.
Then install the driver. Test it by typing:
see if you get a grey stippled screen with mouse cursor. When it crashes back to textmode or gives a bad picture you have issues to solve.
When it is OK, do Ctrl-Alt-Backspace to get back to textmode.
Now you can start the graphic mode by:
(you can also do a reboot)