Cambiar clave root MYSQL

1. Stop the MySQL Server.
   

   sudo /etc/init.d/mysql stop



2. Start the mysqld configuration.
   

   sudo mysqld --skip-grant-tables &



3. Login to MySQL as root.
   

   mysql -u root mysql



4. Replace YOURNEWPASSWORD with your new password!
   

   UPDATE user SET Password=PASSWORD(' TU CONTRASEÑA') WHERE User='root'; FLUSH PRIVILEGES; exit;