华为官网
https://mirrors.huaweicloud.com/
1 首先清理已存在的yum源
cd /etc/yum.repos.d && rm -rf *
2 下载yum源
wget -O /etc/yum.repos.d/CentOS-Base.repo https://repo.huaweicloud.com/repository/conf/CentOS-7-reg.repo //下载华为mirrors
3 清理并下载epel源
yum remove -y epel-release
yum install -y https://repo.huaweicloud.com/epel/epel-release-latest-8.noarch.rpm
rm -rf epel-testing.repo
sed -i “s/#baseurl/baseurl/g” /etc/yum.repos.d/epel.repo
sed -i “s/mirrorlist/#mirrorlist/g” /etc/yum.repos.d/epel.repo
sed -i “s@http://download.fedoraproject.org/pub@https://repo.huaweicloud.com@g” /etc/yum.repos.d/epel.repo
03、清理缓存测试
yum clean all //清除原有yum缓存
yum makecache //刷新缓存
yum repolist all //查看所有配置可以使用的文件，会自动刷新缓存