To reset the root password on Ubuntu 22.04, you can follow these steps:
- Reboot your system and wait for the GRUB menu to appear.
- Once the menu appears, select the “Advanced options for Ubuntu” entry and press Enter.
- Select the kernel you want to boot and press “e” to edit its boot parameters.
- Find the line that starts with “linux” and add the following text to the end of the line: “init=/bin/bash”. This should look like “linux /boot/vmlinuz-5.16.0-rc6 root=/dev/sda1 ro init=/bin/bash”.
- Press Ctrl+X or F10 to boot with the modified parameters.
- Your system should boot into a root shell with a command prompt. Enter the following command to remount the root filesystem in read-write mode:
mount -o remount,rw /
- Now, you can use the following command to change the root password:
- Follow the prompts to set a new password.
- After changing the root password, you should run the following command to restart the system:
- Once the system restarts, you should be able to log in as root with your new password.
Note that resetting the root password in this way can be a security risk if someone gains physical access to your system. It is recommended to use other security measures, such as encryption and strong passwords, to protect your data.