官网

地址：https://opsx.alibaba.com/mirror

名称为：centos，点击【帮助】选项有对应的说明

操作

1.备份

  1. mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

2.下载新的CentOS-Base.repo 到/etc/yum.repos.d/

CentOS 5

  1. wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo

或者

  1. curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo

CentOS 6

  1. wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

或者

  1. curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

CentOS 7

  1. wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

或者

  1. curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

3.生成缓存

之后运行 yum makecache生成缓存

文件内容示例

以下是阿里云服务器 CentOS-Base.repo文件的内容

  1. [base]
  3. name=CentOS-$releasever
  5. enabled=1
  7. failovermethod=priority
  9. baseurl=http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/
  11. gpgcheck=1
  13. gpgkey=http://mirrors.cloud.aliyuncs.com/centos/RPM-GPG-KEY-CentOS-7
  17. [updates]
  19. name=CentOS-$releasever
  21. enabled=1
  23. failovermethod=priority
  25. baseurl=http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/
  27. gpgcheck=1
  29. gpgkey=http://mirrors.cloud.aliyuncs.com/centos/RPM-GPG-KEY-CentOS-7
  33. [extras]
  35. name=CentOS-$releasever
  37. enabled=1
  39. failovermethod=priority
  41. baseurl=http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/
  43. gpgcheck=1
  45. gpgkey=http://mirrors.cloud.aliyuncs.com/centos/RPM-GPG-KEY-CentOS-7