修改CentOS默認yum源為mirrors.163.com
1、首先備份系統自帶yum源配置文件/etc/yum.repos.d/CentOS-Base.repo
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
2、進入yum源配置文件所在的文件夾
cd /etc/yum.repos.d/
3、下載163的yum源配置文件到上面那個文件夾內
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
4、運行yum makecache生成緩存
yum makecache
5、這時候再更新系統就會看到以下mirrors.163.com信息
yum -y update
修改CentOS默認yum源為mirrors.aliyun.com
步驟跟上面的一樣只是下載源不一樣
CentOS7
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
CentOS6
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
CentOS5
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo
詳情查看
https://blog.csdn.net/inslow/article/details/54177191