下载：

wget https://dev.mysql.com/get/Downloads/MySQL-8.2/mysql-8.2.0-1.el9.x86_64.rpm-bundle.tar

解压缩包：

tar xf mysql-8.2.0-1.el9.x86_64.rpm-bundle.tar

安装：

rpm -ivh mysql-community-common-8.2.0-1.el9.x86_64.rpm
rpm -ivh mysql-community-client-plugins-8.2.0-1.el9.x86_64.rpm
rpm -ivh mysql-community-libs-8.2.0-1.el9.x86_64.rpm
rpm -ivh mysql-community-client-8.2.0-1.el9.x86_64.rpm
rpm -ivh mysql-community-icu-data-files-8.2.0-1.el9.x86_64.rpm
rpm -ivh mysql-community-server-8.2.0-1.el9.x86_64.rpm

初始化：

mysqld --initialize-insecure

启动：

systemctl start mysqld.service

安装过程中可能出现的报错：

error: Failed dependencies:
	/usr/bin/perl is needed by mysql-community-server-8.2.0-1.el9.x86_64
	net-tools is needed by mysql-community-server-8.2.0-1.el9.x86_64

解决方法：

yum install perl net-tools