将Centos的yum源改为国内的阿里云源

阿里云Linux安装镜像源地址

http://mirrors.aliyun.com/

CentOS系统更换软件安装源

  1. 备份你的原镜像文件,以免出错后可以恢复。
    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
      wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo
    • CentOS 6
      wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
    • CentOS 7
      wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
  3. 运行yum makecache生成缓存
    yum clean all
    yum makecache