CentOS更改yum源为163源

首先备份/etc/yum.repos.d/CentOS-Base.repo

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

下载对应版本repo文件, 放入/etc/yum.repos.d/(操作前请做好相应备份)

cd /etc/yum.repos.d/

CentOS7：

wget http://mirrors.163.com/.help/CentOS7-Base-163.repo

CentOS6:

wget http://mirrors.163.com/.help/CentOS6-Base-163.repo

CentOS5:

wget http://mirrors.163.com/.help/CentOS5-Base-163.repo

运行以下命令生成缓存

yum clean all
yum makecache