使用redhat 系统在线安装时提示This system is not registered with RHN

5dm

使用redhat 系统在线安装时提示This system is not registered with RHN.如下：
 

[root@localhost ~]# yum install httpd
 Loaded plugins: rhnplugin, security
 This system is not registered with RHN.
 RHN support will be disabled.
 Setting up Install Process
 No package httpd available.
 Nothing to do
 解决方案：
 
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-1.1.2-3.el5.centos.i386.rpm
 [root@localhost ~]# wget  http://centos.ustc.edu.cn/centos/5/os/i386/CentOS/yum-fastestmirror-1.1.16-16.el5.centos.noarch.rpm
 [root@localhost ~]# wget  http://centos.ustc.edu.cn/centos/5/os/i386/CentOS/yum-3.2.22-37.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