redhat yum 源配置

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先检查下版本信息：
[@sohu_99_3 ~]# lsb_release -a
LSB Version:    :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: RedHatEnterpriseServer
Description:    Red Hat Enterprise Linux Server release 5.5 (Tikanga)
Release:        5.5
Codename:       Tikanga

[@sohu_99_3 ~]# uname -a
Linux sohu_99_3 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

[@sohu_99_3 ~]# cat /proc/version
Linux version 2.6.18-194.el5 (mockbuild@x86-005.build.bos.redhat.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Tue Mar 16 21:52:39 EDT 2010

1.卸载redhat自带的yum组件

[root@localhost ~]# rpm -qa|grep yum|xargs rpm -e --nodeps

2.安装centos的yum包

[root@localhost ~]# wget http://centos.ustc.edu.cn/centos/5/os/i386/CentOS/yum-metadata-parser-1.1.2-4.el5.i386.rpm
[root@localhost ~]# wget http://centos.ustc.edu.cn/centos/5/os/i386/CentOS/yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm
[root@localhost ~]# wget http://centos.ustc.edu.cn/centos/5/os/i386/CentOS/yum-3.2.22-40.el5.centos.noarch.rpm

[root@localhost ~]# rpm -ivh *.rpm
warning: yum-3.2.22-37.el5.centos.noarch.rpm: Header V3 DSA signature: NOKEY, key ID e8562897
Preparing...                ########################################### [100%]
    1:yum-metadata-parser    ########################################### [ 33%]
    2:yum-fastestmirror      ########################################### [ 67%]
    3:yum                    ########################################### [100%]

3. 下载更新源，并存放在系统目录中
[root@localhost ~]# wget http://docs.linuxtone.org/soft/lemp/CentOS-Base.repo

[root@localhost ~]#mv CentOS_Base.repo /etc/yum.repos.d/CentOS-Base.repo

4.生成缓存并进行安装

[root@localhost ~]# yum makecache
[root@localhost ~]# yum install httpd

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