How to make CentOS automatically log in as root user when booting?
Specific steps are as follows:
1. Switch to root and edit the custom.conf file in gdm under etc
Basic knowledge:
vi: vi is a text mode editor in linux
2. Enter the script to automatically log in to the root user after booting.
Basic knowledge:
Enter editing mode: Enter i to edit the document
Save and exit: Press Ese first, then enter: wq!
Then you enter in the terminal: shutdown -r now to restart
If you find that the identifier is #, it means that you have successfully logged in as the root user, and you do not need to manually switch to root in the future.