Ubuntu--root user login graphical interface

I was really tired, and after tossing for a day, I couldn't find a solution. Finally, I tried the next article to let the root user log in automatically, and finally succeeded.

1. Log in to the Ubuntu graphical interface as an ordinary user, enter the terminal, and switch to the root user.

 Enter the command: vim /usr/share/lightdm/lightdm.d/50-ubuntu.conf, append two lines to the end of the file


2. If it still does not take effect, directly set the automatic root user login

 Enter the command:  vim /etc/lightdm/lightdm.conf

 Add the following information:







3. If you log in with the root user in the GUI now, there will be an error, an error occurs when reading /root/.profile: mesg:tty n 
The following modifications are also required:
 Enter the command: vi /root/.profile
 replace mesg n || true with
   tty -s && mesg n || true


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