标签：yum
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)
运行以下命令生成缓存
yum clean all
yum makecache
标签：yum
原文地址：http://hequan.blog.51cto.com/5701886/1757931
