Centos 8在mysql官网那边找不到对应版本的5.7版本的Mysql。

1. 下载

wget https://repo.mysql.com//mysql80-community-release-el8-1.noarch.rpm

2. 安装

rpm -ivh mysql80-community-release-el8-1.noarch.rpm
yum install mysql-server

3. 设置开机启动

systemctl enable mysqld.service

4. 登录修改密码

mysql -u root -p
alter user 'root'@'localhost' identified by 'aa';