$ > sudo mysql -uroot
mysql > SELECT User, Host FROM mysql.user;
mysql > DROP USER 'root'@'localhost';
mysql > CREATE USER 'root'@'localhost' IDENTIFIED BY 'STRING-PASSWORD-NYA';
mysql > GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION;
mysql > FLUSH PRIVILEGES;
mysql > exit
$ > mysql -uroot