安装前提
1、使用pkg安装mysql有个前提FreeBSD版本12.2及以上。
 2、内存最好是8GB及以上
安装
$ pkg search mysql
 ……
 mysql80-client-8.0.35          Multithreaded SQL database (client)
 mysql80-server-8.0.35          Multithreaded SQL database (server)
 mysql81-client-8.1.0           Multithreaded SQL database (client)
 mysql81-server-8.1.0           Multithreaded SQL database (server)
 ……
$ sudo pkg install mysql81-server mysql81-client
$ service mysql-server status
 Cannot 'status' mysql. Set mysql_enable to YES in /etc/rc.conf or use 'onestatus' instead of 'status'.
设置开机自启动
$ sudo sysrc mysql_enable=yes
 $ service mysql-server status
 mysql is not running.
启动服务
$ sudo service mysql-server start      #---这里会卡很长时间,并且会启动失败,如果重启系统(reboot)会开机自启动成功
 $ sudo service mysql-server status
 mysql is running as pid 86312.
验证监听端口
$ sockstat -46l|grep 3306              #---如果没有默认的my.cnf则可能bind到*上
 mysql    mysqld     86312 29 tcp46  *:33060               *:*
 mysql    mysqld     86312 31 tcp46  *:3306                *:*
 $ sockstat -46l                        #---有默认的my.cnf则会bind到127.0.0.1,需要修改
 USER     COMMAND    PID   FD  PROTO  LOCAL ADDRESS         FOREIGN ADDRESS      
 mysql    mysqld     98355 18  tcp46  *:33060               *:*
 mysql    mysqld     98355 31  tcp4   127.0.0.1:3306        *:*
 $ vi /usr/local/etc/mysql/my.cnf
 bind-address                    = 192.168.11.199
 #bind-address                    = 127.0.0.1
执行安全设置及修改root密码
$ sudo mysql_secure_installation
 1、启用密码策略工具
 2、修改root密码
 3、禁止root远程登录
 4、删除test数据库
 5、删除匿名登录用户
启动 MySQL 服务:sudo service mysql-server start
 停止 MySQL 服务:sudo service mysql-server stop
 重启 MySQL 服务:sudo service mysql-server restart
 加载 MySQL 配置:sudo service mysql-server reload
查看MySQL版本
mysqladmin -u root -p version
 Enter password: 
 mysqladmin  Ver 8.0.33 for FreeBSD14.0 on amd64 (Source distribution)
 Copyright (c) 2000, 2023, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
 affiliates. Other names may be trademarks of their respective
 owners.
Server version          8.0.33
 Protocol version        10
 Connection              Localhost via UNIX socket
 UNIX socket             /tmp/mysql.sock
 Uptime:                 45 min 0 sec
Threads: 2 Questions: 33 Slow queries: 0 Opens: 154 Flush tables: 3 Open tables: 73 Queries per second avg: 0.012