After a successful installation and reboot, you are first greeted by GRUB (a blue/black menu in which you can choose a distro to boot) and then, usually, by a login prompt. This screen is also called a TTY, and we are usually in TTY1 after a successful boot.
The default runlevel in LinuxBBQ, just for your information, is runlevel 2. We'll need it later, or never, depends on you.
Tip: You can switch between the TTYs by pressing Alt and the cursor keys left and right.
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