删除旧的配置文件
rm -rf /etc/yum.repos.d/*.repo
下载repo文件
wget -O /etc/yum.repos.d/CentOS-Base.repo https://repo.huaweicloud.com/repository/conf/CentOS-8-reg.repo
生成缓存
yum makecache

删除旧的配置文件
rm -rf /etc/yum.repos.d/*.repo
下载repo文件
wget -O /etc/yum.repos.d/CentOS-Base.repo https://repo.huaweicloud.com/repository/conf/CentOS-8-reg.repo
生成缓存
yum makecache