Ubuntu 16.04 Set Root user Login graphical interface

The default for Ubuntu is that the root user cannot log on to the graphical interface, and can only log on to other users. This is very troublesome, because the issue of permissions, can not copy delete files at will, with gedit edit files often can not save, can only use Vim to edit.

Here's an example of Ubuntu version 16.04:

1, open the terminal

2, input sudo vi/usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf

3, add one line: Greeter-show-manual-login=true save close.

4, set the password to the root, input in the midrange: sudo passwd root.

5, if you now use the root user in the GUI login will be error, read/root/.profile error: Mesg:tty n also need to do the following modifications

Sudu Vi/root/.profile

Find MESG N

Replace with tty-s && mesg n

Reboot the system.

You can log in with the root user.