MariaDB forgot root password

https://www.cnblogs.com/Richard-xie/p/4205630.html

http://blog.csdn.net/sfeng95/article/details/61624959

http://blog.csdn.net/ghost_leader/article/details/53366942

https://jingyan.baidu.com/article/335530daaabb6519cb41c3a8.html