安装 mysql release

releasever=$(cat /etc/redhat-release |awk '{print $(NF-1)}'|awk -F. '{print$1}')
yum install http://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql80-community-el${releasever}/mysql80-community-release-el${releasever}-3.noarch.rpm

配置软件源

# 备份配置
cp /etc/yum.repos.d/mysql-community.repo /etc/yum.repos.d/mysql-community.repo.bak
# 修改为清华大学软件源
sed -i 's#repo.mysql.com/yum#mirrors.tuna.tsinghua.edu.cn/mysql/yum#; s/mysql-\([0-9]\)\.\([0-9]\)/mysql\1\2/; s#/el/\([0-9]\)/#-el\1/#; s#$basearch/##' /etc/yum.repos.d/mysql-community.repo