Root access ubuntu

How to Reset Forgotten Ubuntu Password in 2 Minutes

If you forgot your user password on Ubuntu, don’t worry. Root user can access system files and run commands to make changes to the system configuration.

• For a graphical login, switch to a virtual console by pressing to .
  

  And hence, an incorrect command may destroy the system.

  This is why Ubuntu and other Ubuntu-based distributions lock the root user by default to save you from accidental disasters.

  You don’t need to have root privilege for your daily tasks like moving file in your home directory, downloading files from internet, creating documents etc.

  Take this analogy for understanding it better.

  Introduction

  Overview

  In Ubuntu, the “root” user plays a critical role when performing system administration and essential configurations. You can have several terminals, one of them as root, and the rest as normal user, but you have always to be careful when making changes to the system and read the relevant documentation to be aware of possible caveats.

  Of course, if your system/distro does not have the file configured (or if it hasn't the command installed), you cannot use , so it should have a root account and you must know its password.

  Some systems allow to enter some kind of 'recovery mode' at boot, but new distros can ask for the root password (or the password of a sudo user) to enter a shell or even to select GRUB options to protect against unauthorized access.

  This ensures that the environment variable is set correctly, preventing applications from inadvertently creating configuration files in the wrong directory.

  How to Use gksudo

  The following example launches the text editor with root privileges:

  This prevents graphical applications from treating a user’s home directory as root’s home directory, avoiding unexpected behavior.

  Difference Between sudo and gksudo

  When using to launch a graphical application, the variable remains unchanged, meaning files may be created with incorrect ownership.

  You can use it with sudo to temporarly switch to root user:

  If you try to use the su command without sudo, you’ll encounter ‘su authentication failure’ error.

  You can go back to being the normal user by using the exit command.

  How to enable root user in Ubuntu?

  By now, you know that the root user is locked by default in Ubuntu-based distributions.

  Linux gives you the freedom to do whatever you want with your system.

  The method should also be applicable to other Linux distributions.