更改yum镜像站点为中国站点地址

使用yum安装软件，升级系统是非常方便的。但如果网速不行，或在学校（就像首师大）访问国外网成问题的，升级起来慢死。这样，最好更改yum镜像站点为中国站点地址， 很多人选择CentOS源于他的开源、免费、可升级。我选择他最看重最后一点---可升级。开源不用说，linux嘛；免费，哈我是一个提倡盗版者；可升级这点可就是CentOS的绝对优势了，你可以像使用正版红帽一样！I love Red Hat,So I love CentOS. 闲话少叙，奔主题。使用yum安装软件，升级系统是非常方便的。但如果网速不行，或在学校（就像首师大）访问国外网成问题的，升级起来慢死。这样，最好更改yum镜像站点为中国站点地址，这里推荐http://centos.ustc.edu.cn/centos/。中国科技大学的镜像站点。（瞧人家多NB，人家那也是大学，再看...）。 修改/etc/yum.repos.d/CentOS-Base.repo
如下： # 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-$releasever - Base #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os baseurl=http://centos.ustc.edu.cn/centos/$releasever/os/$basearch/ gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 #released updates [updates] name=CentOS-$releasever - Updates #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates baseurl=http://centos.ustc.edu.cn/centos/$releasever/updates/$basearch/ gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 #packages used/produced in the build but not released [addons] name=CentOS-$releasever - Addons #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons baseurl=http://centos.ustc.edu.cn/centos/$releasever/addons/$basearch/ gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 #additional packages that may be useful [extras] name=CentOS-$releasever - Extras #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras baseurl=http://centos.ustc.edu.cn/centos/$releasever/extras/$basearch/ gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 #additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus baseurl=http://centos.ustc.edu.cn/centos/$releasever/centosplus/$basearch/ gpgcheck=1 enabled=0 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 简单的说就是把mirrorlist注释掉，将baseurl改成ustc.edu.cn的镜像地址。 我实验没问题，有问题希望交流。 一次性火机，QQ：591880471