【CentOS 7】

1. curl -o /etc/yum.repos.d/CentOS-Base.repo https://oss.jinghanyun.com/centos/7/CentOS-Base.repo
2. curl -o /etc/yum.repos.d/epel.repo https://oss.jinghanyun.com/centos/7/epel.repo
3. yum clean all
4. yum makecache

【CentOS 8 Stream】

curl -o /etc/yum.repos.d/CentOS-Stream-AppStream.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-AppStream.repo

curl -o /etc/yum.repos.d/CentOS-Stream-BaseOS.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-BaseOS.repo

curl -o /etc/yum.repos.d/CentOS-Stream-Debuginfo.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-Debuginfo.repo

curl -o /etc/yum.repos.d/CentOS-Stream-Extras-common.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-Extras-common.repo

curl -o /etc/yum.repos.d/CentOS-Stream-Extras.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-Extras.repo

curl -o /etc/yum.repos.d/CentOS-Stream-HighAvailability.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-HighAvailability.repo

curl -o /etc/yum.repos.d/CentOS-Stream-Media.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-Media.repo

curl -o /etc/yum.repos.d/CentOS-Stream-NFV.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-NFV.repo

curl -o /etc/yum.repos.d/CentOS-Stream-PowerTools.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-PowerTools.repo

curl -o /etc/yum.repos.d/CentOS-Stream-RealTime.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-RealTime.repo

curl -o /etc/yum.repos.d/CentOS-Stream-ResilientStorage.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-ResilientStorage.repo

curl -o /etc/yum.repos.d/CentOS-Stream-Sources.repo https://mirrors.aliyun.com/repo/centos-stream/8/CentOS-Stream-Sources.repo

yum clean all

yum makecache