ReaHat 安装Centos yum

原因：linux没有在红帽网络上注册，所以无法下载上面的软件包，替代方案可以使用centos。

1、 查看 ReaHat 系统中yum 服务相关的包

# rpm -qa|grep yum

2、删除这些包

# rpm -qa|grep yum|xargs rpm -e --nodeps

3、下载Centos yum包

此时需要注意你的操作系统是32还是64位，查看命令：

# uname -a

或者

# arch

结果是i686则是32位，x86_64则是64位

下载地址：

64位 http://mirror.centos.org/centos/5/os/x86_64/CentOS/

# wget http://mirror.centos.org/centos/5/os/i386/CentOS/yum-3.2.22-40.el5.centos.noarch.rpm
# wget http://mirror.centos.org/centos/5/os/i386/CentOS/yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm
# wget http://mirror.centos.org/centos/5/os/i386/CentOS/yum-metadata-parser-1.1.2-4.el5.x86_64.rpm

32位 http://mirror.centos.org/centos/5/os/i386/CentOS/

# wget http://mirror.centos.org/centos/5/os/i386/CentOS/yum-3.2.22-40.el5.centos.noarch.rpm
# wget http://mirror.centos.org/centos/5/os/i386/CentOS/yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm
# wget http://mirror.centos.org/centos/5/os/i386/CentOS/yum-metadata-parser-1.1.2-4.el5.i386.rpm

4、安装

# rpm -ivh yum-*

# cd /etc/yum.repos.d/
# wget http://docs.linuxtone.org/soft/lemp/CentOS-Base.repo

5、生成缓存

# yum makecache

此时安装结束