There is no Ubuntu Linux root password set by default and you don’t need one. Long answer from the official wiki page: By default, the root account password is locked in Ubuntu. This means that you cannot login as root directly or use the su command to become the root user.

How do I find my root password in Linux?

The procedure to change the root user password on Ubuntu Linux:

1. Type the following command to become root user and issue passwd: sudo -i. passwd.
2. OR set a password for root user in a single go: sudo passwd root.
3. Test it your root password by typing the following command: su –

How do I find my MySQL root password Linux?

Recover your MySQL password

1. Stop the MySQL server process with the command sudo service mysql stop.
2. Start the MySQL server with the command sudo mysqld_safe –skip-grant-tables –skip-networking &
3. Connect to the MySQL server as the root user with the command mysql -u root.