原文鏈接:http://blog.csdn.net/xyang81/article/details/51476498
1、下載CentOS相應發行版的鏡像
查看發行版本:
shell> cat /etc/centos-release
如下載CentOS7的鏡像:
shell> cd /opt
shell> wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
2、備份默認源,並拷貝163源到源管理目錄
shell> mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
shell> cp /opt/CentOS7-Base-163.repo /etc/yum.repos.d/
3、生成緩存
yum clean all
yum makecache