进入vi /ect/selinux/config 配置文件,设置SELinux=disabled ,重启系统即可
#下载并替换 (163的镜像源)
curl -o /etc/yum.repos.d/CentOS-Base.repo mirrors.163.com/.help/CentOS7-Base-163.repo
#更新缓存
yum clean all
yum makecache
1、下载mysql的rpm文件
yum localinstall https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm
2、安装Mysql serv