You want to switch to another runlevel (i.e. a different target unit).
The cleanest method to switch runlevel is to use a text terminal (tty). If you are in a graphical mode (like KDE or GNOME) press Ctrl-Alt-F2 (all at the same time) to switch to virtual terminal 2; when you're done use: Ctrl+Alt+F7 to switch back to the graphical desktop.
You should see the computer awaiting your login:
and press Enter.
It will then prompt you for root's password:
Type the password for root and press Enter. Now you are the most powerful user on your computer.
, for instance, will change the runlevel to 3, which is text mode with networking.
Root can command the system to switch to different runlevels:
- 0 to halt computer (turn off)
- 1 for single user,
- 2 for text mode
- 3 for text mode with network
- 5 for graphic system
- 6 to reboot computer
For instance, to configure graphic cards, use text mode with network, aka runlevel 3:
and press Enter. Now you can start YAST or sax2 and configure your graphic card.
Then return to runlevel 5 with:
If you want to reboot, then type:
and the computer will reboot.
is a more polite way to reboot the computer, as it lets you give a message and a delay.