1:下载repo文件
wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
2:备份并替换系统的repo文件
[root@localhost ~]# cd /etc/yum.repos.d/
[root@localhost ~]# mv CentOS-Base.repo CentOS-Base.repo.bak
[root@localhost ~]# mv CentOS6-Base-163.repo CentOS-Base.repo
3:执行yum源更新命令
[root@localhost ~]# yum clean all
root@localhost ~]# yum makecache
[root@localhost ~]# yum update
转载于:https://www.cnblogs.com/chunshu/p/6219007.html
相关资源：centos7 本地yum源配置