RHEL配置Centos yum源的方法
<p>由于RHEL的yum在线更新是收费的，如果没有注册的话是不能使用的，即不能在线安装软件。在这种情况下，如果我们使用的机器安装的是RHEL系统要是每次安装软件先挂载本地光盘会很繁琐，而且有些软件也是老版本的，这种情况下我们可以借助CentOS的YUM源来满足我们的需求。</p><p><strong>一、删除RHEL原有的YUM</strong></p>
<p>rpm -aq|grep yum|xargs rpm -e --nodeps</p>
<p><strong>二、下载CentOS的yum安装包（163源）</strong></p>
<p>wget http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-3.2.22-40.el5.centos.noarch.rpm</p>
<p>wget http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm</p>
<p>wget http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-metadata-parser-1.1.2-4.el5.x86_64.rpm </p>
<p>wget http://mirrors.163.com/centos/5/os/x86_64/RPM-GPG-KEY-CentOS-5</p>
<p><strong>三、安装CentOS的YUM安装包</strong></p>
<p>yum和yum-plugin-fastestmirror需要一起安装，这两个包存在依赖关系，分开安装会失败，安装之前先把RPM-GPG-KEY导入系统，否则会出现警告信息</p>
<p>rpm -ivh yum-metadata-parser-1.1.2-4.el5.x86_64.rpm </p>
<p>rpm --import RPM-GPG-KEY-CentOS-5</p>
<p>rpm –ivh yum-3.2.22-40.el5.centos.noarch.rpm yum-fastestmirror-1.1.16-21.el5.centos.noarch.rm</p>
<p>至此我们就可以在线使用yum了</p>
<p><strong>四、修改yum源</strong></p>
<p>为了使用在线使用Yum安装软件更快，我们可以使用国内的网易Yum源或者其他国内yum源</p>
<p><strong>五、更改yum源</strong> </p>
<p>#我们使用网易的CentOS镜像源</p>
<p>cd /etc/yum.repos.d/</p>
<p>vi rhel-debuginfo.repo</p>
<p># CentOS-Base.repo</p>
<p>#</p>
<p># The mirror system uses the connecting IP address of the client and the</p>
<p># update status of each mirror to pick mirrors that are updated to and</p>
<p># geographically close to the client. You should use this for CentOS updates</p>
<p># unless you are manually picking other mirrors.</p>
<p>#</p>
<p># If the mirrorlist= does not work for you, as a fall back you can try the</p>
<p># remarked out baseurl= line instead.</p>
<p>#</p>
<p>#</p>
<p></p>
<p>name=CentOS-5 - Base - 163.com</p>
<p>mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=os</p>
<p>baseurl=http://mirrors.163.com/centos/5/os/$basearch/</p>
<p>gpgcheck=1</p>
<p>gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5</p>
<p>#released updates</p>
<p></p>
<p>name=CentOS-5 - Updates - 163.com</p>
<p>mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=updates</p>
<p>baseurl=http://mirrors.163.com/centos/5/updates/$basearch/</p>
<p>gpgcheck=1</p>
<p>gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5</p>
<p>#packages used/produced in the build but not released</p>
<p></p>
<p>name=CentOS-5 - Addons - 163.com</p>
<p>mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=addons</p>
<p>baseurl=http://mirrors.163.com/centos/5/addons/$basearch/</p>
<p>gpgcheck=1</p>
<p>gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5</p>
<p>#additional packages that may be useful</p>
<p></p>
<p>name=CentOS-5 - Extras - 163.com</p>
<p>mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=extras</p>
<p>baseurl=http://mirrors.163.com/centos/5/extras/$basearch/</p>
<p>gpgcheck=1</p>
<p>gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5</p>
<p>#additional packages that extend functionality of existing packages</p>
<p></p>
<p>name=CentOS-5 - Plus - 163.com</p>
<p>mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=centosplus</p>
<p>baseurl=http://mirrors.163.com/centos/5/centosplus/$basearch/</p>
<p>gpgcheck=1</p>
<p>enabled=0</p>
<p>gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5</p>
<p>#contrib - packages by Centos Users</p>
<p></p>
<p>name=CentOS-5 - Contrib - 163.com</p>
<p>mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=contrib</p>
<p>baseurl=http://mirrors.163.com/centos/5/contrib/$basearch/</p>
<p>gpgcheck=1</p>
<p>enabled=0</p>
<p>gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5</p>
<p><strong>六、清理</strong></p>
<p>yum clean all</p>
<p>yum makecache</p>
<p><strong>七、更新</strong></p>
<p>yum update</p>
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