Linux provides the capability for multiple virtual terminals to allow for mutiple logins. Red Hat Linux and Red Hat Fedora Linux have typically provided for 7 virtual terminals for text mode logins. If a graphical interface were used, it was assigned as virtual terminal 7, or vt7. In this case vt1 through vt6 would be text mode sessions and vt7 would be the graphical session.

Each virtual terminal is assigned to a Function Key corresponding to the terminal number. So vt1 would be assigned to function key F1, and so on. It is easy to switch to and from these sessions. On your computer you can hold down the Ctrl and Alt keys and press F2 to switch to vt2. Then hold down the Ctrl and Alt keys and press F1 to switch to vt and the graphical interface.

Starting with Fedora 11 the first Virtual Terminal, vt1, becomes the first graphical (GUI) session after X starts. and vt7 becomes the second GUI session. I am not sure why this has changed.