My personal understanding about switching between Linux graphics and character interfaces and startx

For more information about how to switch between Linux graphics and character interfaces and startx, linux provides six terminals by default to allow users to log on. The switchover mode is Ctrl + Alt + (F1 & mdash; f6 ). These six terminal systems are named tty1 ~ The operating interface environment of tty6, which is the character interface. Graphical Interface Environment... personal understanding about Linux graphics and character interface switching methods and startx linux provides six terminal by default to allow users to log on, switching to Ctrl + Alt + (F1-F6 ). These six terminal systems are named tty1 ~ The operating interface environment of tty6, which is the character interface. The name of the graphic interface environment is tty7. you can use Ctrl + Alt + F7 to switch between them. When we set the Linux login mode to plain text mode (the running level is 3), this login environment only has tty1 ~ The logon terminal interface of tty6 does not have a graphical logon environment. Therefore, you cannot press Ctrl + Alt + F7 to switch to the graphic interface. However, you can log on to any terminal using an account and use the startx command to start the graphic interface. When we enter the logon environment (runtime level 5) of the graphic interface, we have tty1 ~ Tty7. Note: When we enter the character interface through Ctrl + Alt + (F1-F6) in the graphical interface, it is not returned to the graphical interface through startx, only by pressing Ctrl + Alt + F7. You can use startx to start the graphical interface. (1) no other software is running on your tty7, that is, your tty7 must be empty. (2) you must have installed the X window System and the X Server can be started smoothly. (3) you 'd better have a window administrator GNOME or KDE (4) to start the services required by the X Window. for example, XFS must be started first.