正常安装流程

1. 下载安装
brew install mariadb

2. 执行安全的安装脚本
mysql_secure_installation

3. 创建drupal数据库

$ mysqladmin -u root -p create drupal
Enter password: 
$ mysql -u root -p
Enter password: zoinks
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 15 to server version: 4.1.11-standard

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> GRANT ALL PRIVILEGES ON drupal.* TO drupaldbuser@localhost IDENTIFIED BY 'fuffy';
Query OK, 0 rows affected (0.04 sec)

mysql> SET PASSWORD FOR 'drupaldbuser'@'localhost' = OLD_PASSWORD('fuffy');
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.19 sec)
mysql> \q
Bye

可能出现的问题

1. root账号被默认设置，需要修改mariadb或是mysql的root账号？
   一般报的错位Access Denied ，想要修改的话可以在root权限下执行mysql_secure_installation命令
   https://www.osradar.com/reset-the-mysql-mariadb-root-password/