How to Reset the MySQL root password on Ubuntu Linux
Enter the following lines in your terminal. Stop the MySQL Server.
sudo /etc/init.d/mysql stopStart the mysqld configuration.
sudo mysqld --skip-grant-tables &Login to MySQL as root.
mysql -u root mysqlReplace YOURNEWPASSWORD with your new password!
UPDATE user SET Password=PASSWORD('YOURNEWPASSWORD') WHERE User='root';
FLUSH PRIVILEGES;
exit;