CentOS 5.5 yum源修改

在CentOS系统中，yum是个好东西，一组件可以直接通过yum来安装，但系统默认的yum源速度往往不尽人意，为了达到快递安装的目的，在这里就需要修改yum源

中科大的Centos 开源镜像站点. http://centos.ustc.edu.cn/
执行以下命令就可以了

cd /etc/yum.repos.d

mv CentOS-Base.repo CentOS-Base.repo.bak

wget http://centos.ustc.edu.cn/CentOS-Base.repo.5

mv CentOS-Base.repo.5 CentOS-Base.repo

cat CentOS-Base.repo

[base]

name=CentOS-$releasever - Base

baseurl=http://centos.ustc.edu.cn/centos/$releasever/os/$basearch/

gpgcheck=1

gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#released updates

[updates]

name=CentOS-$releasever - Updates

baseurl=http://centos.ustc.edu.cn/centos/$releasever/updates/$basearch/

gpgcheck=1

gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released

[addons]

name=CentOS-$releasever - Addons

baseurl=http://centos.ustc.edu.cn/centos/$releasever/addons/$basearch/

gpgcheck=1

gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful

[extras]

name=CentOS-$releasever - Extras

baseurl=http://centos.ustc.edu.cn/centos/$releasever/extras/$basearch/

gpgcheck=1

gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages

[centosplus]

name=CentOS-$releasever - Plus

baseurl=http://centos.ustc.edu.cn/centos/$releasever/centosplus/$basearch/

gpgcheck=1

enabled=0

gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5

也可以使用，http://mirrors.163.com/ http://mirrors.sohu.com