Raspberry Pi 4B install MySQL

1. Replace domestic source

1. Backup original file.

   sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
   sudo cp /etc/apt/sources.list.d/raspi.list /etc/apt/sources.list.d/raspi.list.bak
   

2. Editing system source files, modify the Tsinghua source.

   sudo vim /etc/apt/sources.list
   

   Notes and original content changed

   deb http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ buster main contrib non-free rpi
   deb-src http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ buster main contrib non-free rpi
   

3. Change the system source

   sudo vim /etc/apt/sources.list.d/raspi.list
   

   Notes and original content changed

   deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui
   deb-src http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui
   

4. Update Package Index

   sudo apt-get update
   sudo apt-get upgrade
   

2. Install MySQL

1. Installation MySQL - MariaDB

   sudo apt-get install mariadb-server
   

2. After installation, use an empty password mysql.

   sudo mysql -u root -p
   

3. Change Password process

   use mysql; 						# 连接数据库
   set password=PASSWORD('123456');# 修改密码为123456
   flush privileges;				# 刷新
   exit;   						# 退出
   

3. Test

4.Navicat Raspberry Pi 4B database connection

1. First, change the password

   use mysql;
   alter user 'root'@'localhost' identified by '123456';
   flush privileges;
   exit;
   

2. Notebind-address = 127.0.0.1

   sudo vim /etc/mysql/mariadb.conf.d/50-server.cnf
   systemctl restart mariadb
   netstat -an | grep 3306
   

   Operational feedback:

   ---------------------------------
   tcp6    0  0 :::3306  :::*    LISTEN
   ------------------------------------
   

3. Navicat New Connection MariaDB, click Test.