RedHat安装yum+配置国内yum源解决redhat须要注册才能更新源

YUM是Redhat Linux在线安装更新及软件的工具，可是这是RHEL的收费功能，若是没有购买Redhat的服务时不能使用RHEL的更新源的，会提示注册。 
在这种状况下，想使用Redhat系统，还想用yum源来在线安装软件，有没有办法？ 
解决办法:

1.卸载现有的yum

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

下载Centos的yum安装包 
http://mirrors.163.com/centos/6/os/x86_64/Packages/ 
http://mirrors.163.com/centos/6/os/i386/Packages/

我这里安装的是x86_64的 
查看本身版本的方法：

cat /etc/redhat-release
uname -m

而后下载：

x86-64:

wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-81.el6.centos.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-41.el6.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/python-urlgrabber-3.9.1-11.el6.noarch.rpm

i386:

wget http://mirrors.163.com/centos/6/os/i386/Packages/yum-3.2.29-81.el6.centos.noarch.rpm
wget http://mirrors.163.com/centos/6/os/i386/Packages/yum-metadata-parser-1.1.2-16.el6.i686.rpm
wget http://mirrors.163.com/centos/6/os/i386/Packages/yum-plugin-fastestmirror-1.1.30-41.el6.noarch.rpm
wget http://mirrors.163.com/centos/6/os/i386/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
wget http://mirrors.163.com/centos/6/os/i386/Packages/python-urlgrabber-3.9.1-11.el6.noarch.rpm
(这里的地址不必定对)若是404?直接到http://mirrors.163.com/centos/6/os/上本身找就OK了

安装yum

rpm -ivh python-iniparse-0.3.1-2.1.el6.noarch.rpm
rpm -ivh yum-metadata-parser-1.1.2-16.el6.x86_64.rpm 
rpm -ivh yum-3.2.29-81.el6.centos.noarch.rpm  yum-plugin-fastestmirror-1.1.30-41.el6.noarch.rpm
//rpm -ivh yum和yum-plugin-fastestmirror有相依性,因此要一块儿装

更新repo

在 /etc/yum.repos.d/下面把旧的*.repo备份一下（把文件后缀.repo改为.bk，一来做备份，而来不删除原来的repo文件，下载软件的时候仍是会出问题，我认为是仍是会去原来的repo文件挨个查找） 
开始使用了原做者的配置，后来发现装软件的时候仍是有问题 

[base] 
name=CentOS-6 - Base - 163.com 
baseurl=http://mirrors.163.com/centos/6/os/i386/ 
gpgcheck=1 
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 
[updates] 
name=CentOS-6 - Updates - 163.com 
baseurl=http://mirrors.163.com/centos/6/updates/i386/ 
gpgcheck=1 
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 
[extras] 
name=CentOS-6 - Extras - 163.com 
baseurl=http://mirrors.163.com/centos/6/extras/i386/ 
gpgcheck=1 
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 
[centosplus] 
name=CentOS-6 - Plus - 163.com 
baseurl=http://mirrors.163.com/centos/6/centosplus/i386/ 
gpgcheck=1 
enabled=0 
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 
[contrib] 
name=CentOS-6 - Contrib - 163.com 
baseurl=http://mirrors.163.com/centos/6/contrib/i386/ 
gpgcheck=1 
enabled=0 
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 

后来换了一个网易的源

wget http://mirrors.163.com/.help/CentOS6-Base-163.repo

文件中releasever和releasever和basearch这两个变量,必定要先确认这两个环境变量是否存在,(echo一下) 
若是不存在,就要用数字6和i386替换,6是版本号（不要改成6.4）

    %s/$releasever/6/g

不然会出现错误： 
http://mirror.centos.org/centos/%24releasever/os/i386/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - “The requested URL returned error: 404”

最后一步

yum clean all 
yum makecache

(其实最后在yum安装Heartbeat3.0的时候仍是安装出错，应该是源的问题)

参考：  http://my.oschina.net/tdonemadao/blog/374580