When you're finished looking around for the first time, you can log out to quit your session (see Figure 5).
When you log out, you'll be returned to the opening screen you found when your system started.
To log out, just go to the GNOME footprint on the panel, left- click once and click on Log out.
You'll be presented with a box, asking you whether you want to log out. Click once on Yes.
After a few moments, you'll be returned to the log in screen.
Summary: At Login - type root At Password - type yourrootpassword To quit -- Left-click on the GNOME footprint, then click on Log out, click Yes.