# 查看当前系统可用mysql版本
yum repolist enabled | grep "mysql.*-community.*"当前没有可用版本
# 下载 8.0 --no-check-certificate 不需要登录
wget --no-check-certificate https://repo.mysql.com//mysql80-community-release-el7-3.noarch.rpm
# 安装mysql repo
yum localinstall mysql80-community-release-el7-3.noarch.rpm查看可用版本
yum repolist enabled | grep "mysql.*-community.*"
安装mysql
yum install mysql-community-server启动
systemctl start mysqld
