摘要：
前往阿里云活动仓库阿里云形象官方网站https://developer.aliyun.com/mirror/首先备份源mv/etc/yum.repos.d/CentOS-Base.repo/etc/yum.repos.d/CentOS-Base.repo。备份下载新的CentOS-Base.repoto/etc/yum.repos.d/wget-O/etc/yum。根据相应版本的回购
去阿里云
有源仓库 阿里云镜像官方站点
https://developer.aliyun.com/mirror/
先备份本机上的源
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
根据对应版本下载新的 CentOS-Base.repo 到 /etc/yum.repos.d/
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo
或者
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo
运行 yum makecache 生成缓存
[23:36:42 root@C8[ network-scripts]#yum makecache
Repository AppStream is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository PowerTools is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
CentOS-8 - AppStream 2.2 kB/s | 4.3 kB 00:01
CentOS-8 - Base - mirrors.aliyun.com 1.7 MB/s | 2.2 MB 00:01
CentOS-8 - Extras - mirrors.aliyun.com 20 kB/s | 5.5 kB 00:00
Metadata cache created.