帮助中心 yum安装时出现:Cannot retrieve metalink for repository: 在CentOS 6.3 x86_64下安装php-mcrypt的时候出现了问题:Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again,需要安装epel源。解决方法: 一句话:把/etc/yum.repos.d/epel.repo,文件第3行注释去掉,把第四行注释掉。具体如下:打开/etc/yum.repos.d/epel.repo,将[epel]name=Extra Packages for Enterprise Linux 6 - $basearch#baseurl=http://download.fedoraproject.org/pub/epel/6/$basearchmirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch修改为[epel]name=Extra Packages for Enterprise Linux 6 - $basearchbaseurl=http://download.fedoraproject.org/pub/epel/6/$basearch#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch再清理源,重新安装yum clean allyum install -y 需要的包 如果还是不行,修改DNS,到/etc/resolv.conf下添加一下:nameserver 8.8.8.8search localdomain然后重启network服务:service network restart