爲redhat 配置CentOS 源

因爲這裏用的是redhat5.5的操作系統，對應到CentOS5.5的安裝源。
首先要聯網 或者 一張CentOS DVD盤[系統號對應]

聯網環境：

準備一個開源鏡相站

網易：http://mirrors.163.com/centos/5/os/x86_64/
搜狐：http://mirrors.sohu.com/centos/5/os/x86_64/

刪除redhat自帶的yum

rpm -qa|grep yum   #有幾個刪除幾個
rpm -e --nodeps 包名

網易開源站爲例：

獲取對應CentOS5.5的yum rpm包 並安裝

yum-3.2.22-40.el5.centos.noarch.rpm
yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm
yum-metadata-parser-1.1.2-4.el5.x86_64.rpm

下載之後，一起安裝，存在相互依賴關係
rpm -ivh yum-3.2.22-40.el5.centos.noarch.rpm yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm yum-metadata-parser-1.1.2-4.el5.x86_64.rpm

下載RPM-GPG-KEY-CentOS-5文件

RPM-GPG-KEY-CentOS-5
將文件放入/etc/pki/rpm-gpg/ 目錄下

下載repo文件

CentOS-Base-163.repo
CentOS-Base-sohu.repo
修改CentOS-Base-163.repo：
註釋掉所有的 mirrorlist，替換$releasever爲5，[對號入座]：

# CentOS-Base.repo
[base]  
name=CentOS-5 - Base - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=http://mirrors.163.com/centos/5/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#released updates 
[updates]
name=CentOS-5 - Updates - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://mirrors.163.com/centos/5/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released
[addons]
name=CentOS-5 - Addons - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons
baseurl=http://mirrors.163.com/centos/5/addons/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[extras]
name=CentOS-5 - Extras - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
baseurl=http://mirrors.163.com/centos/5/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-5.5 - Plus - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
baseurl=http://mirrors.163.com/centos/5/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
baseurl=http://mirrors.163.com/centos/5/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5