Nginx, PHP-FPM & MariaDB MySQL

Centmin Mod 123.09beta01's centmin.sh menu option 11 submenu option 0 allows resetting MySQL root user password when the known existing MySQL root password is contained in /root/.my.cnf. But when you do not have a valid working MySQL root password in /root/.my.cnf and/or you don't know the existing MySQL root password, you will need to reset it via official documented methods outlined here. However, for MariaDB 10.1.19+ seems the official method isn't working...