修改CentOS默认yum源为国内yum镜像源
修改CentOS默认yum源为mirrors.163.com
1、首先备份系统自带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、进入yum源配置文件所在的文件夹
cd /etc/yum.repos.d/
3、下载163的yum源配置文件到上面那个文件夹内
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、运行yum makecache生成缓存
yum makecache
5、这时候再更新系统就会看到以下mirrors.163.com信息
yum -y update
修改CentOS默认yum源为mirrors.aliyun.com
步骤跟上面的一样只是下载源不一样
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
详情查看
https://blog.csdn.net/inslow/article/details/54177191