how to disable x server?

[pzUH]

im using fedora 9 and i want to install a vga driver, but it ask me to disable the X server.
How to do that and how to re-enable it again?

[GNU-Fan]

1. Logout, so that the login-window appears.
2. Hit CTRL+ALT+F1 to get to the virtual console number one.
3. Login as root.
4. If you use GNOME, write "killall gdm", if KDE, write "killall kdm".
This stops the graphical login program which has started X. So X should exit automatically now.
5. Make the necessary changes.
6. Start "gdm &", or "kdm &" resp. again. The ampersand is for starting it in the background so that you can log out of terminal 1without stopping it again. The screen should change automatically to the graphical login, which is usually on number seven.
7. Switch back to the virtual console number one with CTRL+ALT+F1.
8. LogOut.
9. Switch back to the graphical console number seven with CTRL+ALT+F7.

[pzUH]

many thanks

[daark.child]

An alternative is

1. Logout of your GUI session
2. Do CTRL-ALT-F1 and login to the CLI as root
3. Switch to runlevel 3 (X is stopped in runlevel 3) by running "init 3" (without quotes)
4. Install your drivers
5. Switch back to runlevel 5 (X is started in runlevel 5) by running "init 5" (without quotes)