Ubah suai dan pecahkan kata laluan akar pangkalan data MariaDB

 # /usr/local/mysql/bin/mysqladmin -uroot -p password "New-password"
 Enter password: 【输入原有密码】 //输入后回车密码就修改成了New-password

 # mysql -uroot -p //回车登录mysql系统
 Enter password: 【输入原来的密码】
 MariaDB [(none)]> use mysql； //进入mysql数据库
 MariaDB [(none)]> update user set password=passworD("New-password") where user='root';
 MariaDB [(none)]> flush privileges; //刷新数据库
 MariaDB [(none)]> exit; //退出

 # systemctl stop mysql
 # /usr/local/mysql/bin/mysqld_safe --skip-grant-tables &

# mysql
 MariaDB [(none)]> use mysql;
 MariaDB [(none)]> UPDATE user SET password=password("New-password") WHERE user='root';
 MariaDB [(none)]> flush privileges;
 MariaDB [(none)]> exit;