Set Root user boot Ubuntu

After installing Ubuntu default is set by the user to log in, many operations we need to switch the user to operate Root

   Root User Switching

Use the command "sudo passwd root", then enter the user name and password

Next, enter the root password and confirm

After then use the command "su root", enter the root password into both the root user

   Set Root user boot

Into the specified directory:

cd /usr/share/lightdm/lightdm.conf.d/

Modify the file:

gedit 50-unity-greeter.conf 

Add half moon in the file content:

Red box reads as follows:

user-session=ubuntu

greeter-show-manual-login=true

all-guest=false

Root user in a graphical interface to log an error --- An error occurred while reading /root/.profile: mesg: tty n

You need to do the following changes:

Use the command "gedit /root/.profile" open the file

change into:

After the save and reboot the machine.

Use the root user can login and password