修改/etc/yum.repos.d/CentOS-Base.repo，将镜象站点地址改为在中国的镜象站点地址。不然我们通过yum安装软件速度会比较慢。
以下的URL地址我都验证过了在当前完全可以下载，而且速度挺快。
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bakvi /etc/yum.repos.d/CentOS-Base.repo
view plaincopy to clipboardprint?# CentOS-Base.repo # # This file uses a new mirrorlist system developed by Lance Davis for CentOS. # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the client. You should use this for CentOS updates # unless you are manually picking other mirrors. # # If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead. # #
[base] name=CentOS-$releasever – Base baseurl=http://mirror.be10.com/centos/$releasever/os/$basearch/ $releasever/os/$basearch/ $releasever/os/$basearch/ gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4 #released updates [update] name=CentOS-$releasever – Updates baseurl=http://mirror.be10.com/centos/$releasever/os/$basearch/ $releasever/os/$basearch/ $releasever/os/$basearch/ gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4 #packages used/produced in the build but not released [addons] name=CentOS-$releasever – Addons baseurl=http://mirror.be10.com/centos/$releasever/os/$basearch/ $releasever/os/$basearch/ $releasever/os/$basearch/ gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4 #additional packages that may be useful [extras] name=CentOS-$releasever – Extras baseurl=http://mirror.be10.com/centos/$releasever/os/$basearch/ $releasever/os/$basearch/ $releasever/os/$basearch/ gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4 #additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever – Plus baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/ gpgcheck=1 enabled=0 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4 #contrib – packages by Centos Users [contrib] name=CentOS-$releasever – Contrib baseurl=http://mirror.centos.org/centos/$releasever/contrib/$basearch/ gpgcheck=1 enabled=0 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4
，旅游时最好的习惯：找个舒适的小店，挑张雅致的明信片，
