This article will show you 'how to create a root user in Ubuntu for first time'.
A root user is a power user who will have app the permissions on the system to do any changes he/she wants to make.
In this article we will create the root user for the first time in newly installed Ubuntu.
First open terminal window (Terminal window is used to run commands it is also called CLI that is command line interface)
Now type “sudo passwd” and press enter.
It will ask you to write new UNIX password. Type in your password.
Once it done write “su” and Enter, then enter your password and you will be logged in as a root user.