Reset Ubuntu Password Quickly If Forgotten


  • Prepare by setting a strong superuser password and accessing the command line
  • Boot into Recovery Mode, select the root shell prompt, and use the passwd command to reset the password
  • Use a Live USB/CD to reset the password quickly by creating a bootable USB/CD, accessing BIOS settings, and using the sudo passwd command
  • Secure your account post-reset by changing the password, enabling firewall, updating the system, and disabling unnecessary services

In this article, I will discuss how to quickly reset your Ubuntu password if you have forgotten it.

Preparation Steps Before Resetting Password

Before resetting your Ubuntu password, there are a few preparation steps you should take to ensure a smooth process. First, make sure you have access to the superuser account. You can do this by booting into the command-line interface.

Once you have access to the command line, type the following command:


This will prompt you to enter a new password for the superuser account. Make sure to choose a strong password that you will remember.

After setting the superuser password, you can proceed with resetting the password for your Ubuntu user account. This can be done by accessing the shell and using the passwd command followed by your username.

For example, if your username is “exampleuser,” you would type:

passwd exampleuser

Enter your new password when prompted and confirm it. Once completed, you can reboot your computer and log in with your new password.

Booting and Utilizing Recovery Mode

Booting into Recovery Mode: To reset your Ubuntu password quickly if forgotten, you can boot into Recovery Mode. Start by shutting down your computer completely. Turn it back on and press the Shift key repeatedly during the boot process. This will bring up the GRUB menu.

Selecting Recovery Mode: In the GRUB menu, use the arrow keys to navigate to the “Advanced options for Ubuntu” and press Enter. Then, select the recovery mode option for the latest kernel version. This will boot your system into Recovery Mode with a root shell prompt.

Utilizing Recovery Mode: Once in Recovery Mode, use the root shell prompt to reset the password. Type passwd username, replacing “username” with the actual username of the account for which you want to reset the password. Follow the on-screen instructions to set a new password. After resetting the password, reboot your system and log in with the new password.

Using Live USB/CD for Password Reset

To reset your Ubuntu password quickly if forgotten, one easy method is to use a Live USB/CD. Start by creating a bootable USB/CD with an Ubuntu image.

Insert the Live USB/CD into the computer and restart it. Access the BIOS settings by pressing a specific key (usually F2, F12, or Del) during startup.

Select the USB/CD as the boot option and restart the computer again.

Once the Live USB/CD loads, open a terminal window. Use the command “sudo passwd username” to reset the password for the specified username.

Follow the prompts to enter and confirm the new password.

Restart the computer and boot into the Ubuntu operating system. You can now log in using the new password you just set.

This method is quick and efficient for resetting a forgotten password on Ubuntu.

Securing Account Post-Reset

After resetting your Ubuntu password, it is important to secure your account to prevent unauthorized access.

1. Change your password: Choose a strong and unique password that includes a combination of letters, numbers, and special characters.

2. Enable firewall: Use the command sudo ufw enable to activate the Uncomplicated Firewall and enhance your system’s security.

3. Update your system: Keep your operating system and software up to date by running the command sudo apt update && sudo apt upgrade regularly.

4. Disable unnecessary services: Use the command sudo systemctl disable service_name to deactivate any services that are not required for your system.

Addressing Keyring and Security Concerns

If you have forgotten your Ubuntu password and need to reset it quickly, you can do so using the command-line interface.

First, boot into recovery mode by restarting your computer and holding down the Shift key until the GRUB menu appears.

Next, select the “Advanced options for Ubuntu” and choose the option that says “Ubuntu (recovery mode)”.

Once in recovery mode, select the “root Drop to root shell prompt” option.

Now, you can reset your password by typing the following command:

passwd username

Replace “username” with your actual username.

After entering a new password, reboot your computer and log in with your updated credentials.

This quick and straightforward process will allow you to regain access to your Ubuntu system if you have forgotten your password.

Troubleshooting Common Reset Issues

If you’re having trouble resetting your Ubuntu password, try accessing the root shell in recovery mode and using the passwd command. Check and fix permissions on the /etc/passwd file with “chmod 644 /etc/passwd”. Verify the /etc/shadow file for errors with “sudo cat /etc/shadow | grep [your_username]”.


How do I open Ubuntu if I forgot my password?

To open Ubuntu if you forgot your password, you can boot into Recovery Mode and reset your password. Restart your system while pressing and holding Esc or the left-side Shift button, then select Recovery mode from the GRUB boot menu.

How to reset user password in Ubuntu?

To reset a user password in Ubuntu, you can click on the gear icon in the top-right of the desktop, select System Settings, then click on User Accounts. If more than one user account is present, enter the current user password, enter a new password, and retype the new password a second time.

How to login Ubuntu without password?

To login to Ubuntu without a password, you can set up SSH keys for authentication. This involves generating a SSH key and adding it to the server using the ssh-copy-id command.