Ubuntu Default Root Password (Default Ubuntu Password Explained)


In Ubuntu, many Linux users often wonder about the Ubuntu root password. If you haven’t set it yourself, what could it possibly be? The Ubuntu desktop offers a distinctive user interface, along with a variety of applications and games. However, some users may encounter difficulties when trying to execute certain commands in the terminal for specific tasks.

Ubuntu is completely free of charge, with no additional fees required. Root users enjoy unrestricted access to all commands and resources on the system. The root user, also known as the superuser, holds full administrative powers on Ubuntu Linux and similar Unix-based systems. However, relying on the root account for everyday tasks can be highly dangerous and might harm your system.

Unlocking the full potential of your Ubuntu installation involves gaining privileged access to the system, which means discovering the Ubuntu default root password. Once you have this password, you can access administrative functions and perform tasks that regular users can't. This elevated access allows you to customize your Ubuntu system according to your needs and preferences. In this guide, you will explore the default Ubuntu root password, which you can access on Ubuntu. In addition, we will also guide you on how you can change the Ubuntu password on your system. 

What Is Ubuntu Default Root Password?

During the installation of Ubuntu, you set both a username and a password. There isn't a default login password for Ubuntu or any other operating system. By default, the Ubuntu default root password or account in Ubuntu is locked, meaning it's inaccessible.

To avoid repeatedly typing "sudo" on Ubuntu Linux, you can use either "sudo -i" or "sudo -s" commands. However, exercise caution as these grant extensive privileges, which may lead to unintended consequences if misused.

For initiating a root shell and reading login-specific resource files:

$ sudo -i

On the other hand, for starting a shell as specified by the SHELL environment variable or user’s password database entry:

$ sudo -s

If a command is provided, it's executed via the shell's -c option. If no command is given, it launches an interactive shell. It’s important to note that different shells behave differently with command execution versus interactive sessions, so refer to the shell’s manual for specifics.

By following these steps, you can successfully add a new user to your Ubuntu 22.04 system, whether through the graphical interface or the command line.

What Is the Ubuntu Root Password?

In the Ubuntu Linux distribution, the Ubuntu root password or account is initially locked by default, preventing direct login or the use of the 'su -' command to access superuser privileges. Instead, Ubuntu employs the 'sudo' command to execute administrative tasks. With 'sudo,' authorized users can run commands as the superuser or another user. During installation, Ubuntu configures your default account to handle all administrative tasks.

How To Add a User With Ubuntu Root Password?

Linux is a multi-user operating system that allows for the creation of individual user accounts with distinct directories, settings, and documents. Adding a new user in Ubuntu 22.04, whether through the graphical interface or command line, is a fundamental skill. This guide covers both methods, including granting sudo access and removing users if necessary.

Before proceeding, ensure you have administrative or root privileges to create a new Ubuntu default login. If you are adding an admin via a graphical interface:

  • Open the 'Activities' overview and search for 'Users' in the application bar.
  • Click on the 'User' icon to open the settings panel.
  • Unlock the settings by entering the login user password when prompted.
  • Click 'Add user' to initiate the process.
  • Choose the account type; for administrative access, select 'Administrator.'
  • Enter the user's full name; the username is automatically suggested but can be changed.
  • Select 'set password now' and provide a password for the new user, confirming it.
  • Click 'Add' to finalize the new user's addition.

If you are adding a user via Terminal:

  • Open the Terminal using 'Ctrl+Alt +t' or from the application menu.
  • Use the 'adduser' command followed by the desired username to create a new user:

$ adduser user_name

Enter the sudo password and set a password for the new user when prompted.

  • Confirm the account details or proceed with default options by pressing 'Enter.' Confirm the addition by entering 'y' when prompted.
  • Verify the new user account using:

$ cat /etc/passwd | grep [username]

  • To make this user sudo or root, you will grant administrative privileges to the new user:

$ usermod –aG sudo [username]

This command adds the user to the sudo group, granting administrative access.

How To Change the Ubuntu Root Password? (Change Ubuntu Password)

In Ubuntu Linux, the root user account password is intentionally locked by default for security purposes. This means that logging in directly as the root user or using the 'su -' command to switch to the root user is not allowed. Instead, users can manage their passwords using the 'passwd' command. Normally, a user can only change their password, while the SuperUser (root) has the authority to change the password for any user account.

User account information is stored in the '/etc/passwd' file, while the encrypted password hash is stored in the '/etc/shadow' file. This separation helps to secure user credentials and sensitive information.

Step To Change Ubuntu Password

To change your Ubuntu password, you can follow these steps:

Step 1: Open a terminal window. You can also search for "Terminal" in the Ubuntu Dash or press ‘Ctrl + Alt + T.’

To switch to the root user and change the password, type the command in the terminal:

 $ sudo -i 

The above command grants you temporary root access. Then, issue the "passwd" command to change the password.

Now, to change the root password, execute the following command and press Enter:

$ sudo passwd root

Step 2: You'll be prompted to enter your user password. Type the Ubuntu root password and press Enter.

Step 3: Now, you'll be asked to enter the new root password. Type the new password and press Enter. Note that as you type, you won't see any characters on the screen for security reasons.

Step 4: Re-enter the new Ubuntu root password when prompted to confirm, and press Enter.

Step 5: To test your Ubuntu root password, enter the command "su -" in the terminal. This command will prompt you to enter the root password. If the password is correct, you'll gain root access.

That's it! You've now successfully changed the Ubuntu root password. Make sure to remember the new password for future use.

How to Switch a Root User Account in Ubuntu

Enabling the root user account in Ubuntu can be done by modifying the sudoers file to grant administrative privileges to a user. By default, Ubuntu utilizes sudo for system tasks, allowing users in the sudo group to perform administrative actions by providing their passwords.

To grant a user sudo access, you can add them to the sudo group using the usermod command:

$ sudo usermod -aG sudo username

Replace "username" with the desired username.

Once added to the sudo group, users can execute commands with elevated privileges using the sudo prefix:

$ sudo some-command

The first time a user uses sudo, they'll be prompted to enter their password. To allow running commands with sudo without password entry, you can edit the sudoers file:

$ sudo visudo

This command opens the sudoers file for editing. You can add the following line, replacing "username" with the desired username:


With these steps, you can effectively manage administrative tasks in Ubuntu without relying on the root user account.

How To Disable Ubuntu Default Login?

To disable the root account on Ubuntu, you can execute either of the following commands:

$ sudo passwd -dl root


$ sudo passwd --delete --lock root

Here's a breakdown of the commands and their options:

-d or --delete: This option deletes the password for the specified user, making it empty. For the root user, it effectively disables the password.

-l or --lock: This option locks the password of the specified account, such as root. It disables the password by changing it to a value that does not match any possible encrypted value, typically by adding a '!' character at the beginning of the password.

By executing either of these commands, you effectively disable the root account on your Ubuntu system.

Advantages of Disabled Ubuntu Default Login

Enhanced Security: By default, Ubuntu locks the root user account, reducing the risk of unauthorized access and potential exploitation of the system.

Improved Accountability: The use of sudo for administrative tasks allows for logging of command executions, enhancing accountability and traceability of system changes.

Protection Against Brute-Force Attacks: Disabling direct root logins mitigates the risk of brute-force attacks targeting the root account, as attackers must first guess valid usernames.

Simplified Administration: With sudo, administrators can easily delegate and manage user privileges, facilitating smooth administration without the need to share the root password.

Customizable Security Policies: Sudo can be configured with specific security policies, allowing fine-grained control over user permissions and access levels.

Limited Exposure of Root Credentials: By not sharing the root account password, the risk of unauthorized access is minimized, as only authorized individuals have access to perform administrative tasks.

Disadvantages of Disable Ubuntu Default Login

Authentication Timeout: Although sudo authentication expires after a set time, users may find it inconvenient if they frequently step away from the terminal, as it requires re-authentication.

Overall, the advantages of enhanced security, accountability, and simplified administration outweigh the minor inconvenience of authentication timeouts in Ubuntu with disabled root logins.


In this guide, we explained what the Ubuntu default root password is and how to change the default Ubuntu root password. The root user password is turned off by default in Ubuntu, but this doesn't mean the root account is gone. You can't log in as the root user because no passwords are set for it. 

To enable the root password for Ubuntu, which is disabled for security purposes, you have to set it yourself. When choosing a password, it's important to use a mix of numbers, special characters, and letters to create a strong password. Creating a unique and strong root password is essential for keeping your account secure.

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How Can I Log in as a Root User in Ubuntu?

To login as the root user in Ubuntu, you can open the terminal application and execute either of the following sudo commands:

$ sudo bash


$ sudo -s

After entering one of these commands, you'll be prompted to provide your password. Once authenticated, you'll gain root access to the system.

What Is the Ubuntu Default Root Password in Linux?

In Ubuntu Linux, the root account is locked by default, meaning there is no default root password, and direct login as root or using the 'su' command to become the root user is not possible. However, even though the root account is inactive, it still exists physically, enabling users to run programs with root-level privileges. 

To facilitate this, Ubuntu employs the 'sudo' command, which allows authorized users to execute specific programs as root without requiring knowledge of the root password. Consequently, when performing tasks in the terminal that necessitate root privileges, users should prepend 'sudo' to the commands.

How To Assign Root or Sudo Privileges to a User?

After being added to the sudo group, users can run commands with elevated privileges by prefixing them with "sudo." Upon initial sudo use, users will be prompted to input their password. 

To enable running sudo commands without password entry, users can modify the sudoers file using the "sudo visudo" command. By adding a line in the sudoers file and replacing "username" with the appropriate username, users can bypass password entry for sudo commands.

Is It Advised To Disable the Default Login in Ubuntu?

Disabling the default login for Ubuntu can provide added security by reducing the risk of unauthorized access. However, it's essential to consider the implications carefully. Disabling the default login means users must log in using alternative methods, such as SSH keys or alternative authentication mechanisms. This can increase security but may also inconvenience users, especially if they're accustomed to the default login method. Ultimately, the decision to disable the default login should be based on your specific security requirements and the needs of your users.

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