由于 redhat的yum在线更新是收费的，如果没有注册的话不能使用，如果要使用，需将redhat的yum卸载后，重启安装，再配置其他源.

本文包括配置本地源及第三方源。第三方源包括：网易，epel，repoforge，rpmfusion。以下以网易镜像为例进行着重讲解。本案例用到的相关文件见页面最底部。

刚安装完RHEL6以后直接yum命令得到如下所示的找不到匹配项的结果：

[root@jxsjtt data]# yum search nginx

Loaded plugins: product-id, refresh-packagekit, security, subscription-manager

Updating certificate-based repositories.

Unable to read consumer identity

Warning: No matches found for: nginx

No Matches found

[root@jxsjtt data]#

操作步骤：

1.删除redhat原有的yum

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

2.下载yum安装文件

注意，如果下载时找不到文件，就登录到：http://mirrors.163.com/centos/6/os/x86_64/ 上查找相应的文件。然后再下载,部分rpm包版本可能有所不同，如果报404可到http://mirrors.163.com/centos/6/os/x86_64/Packages/搜索包名即可。

wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-69.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-1.1.30-30.el6.noarch.rpm

wget http://mirrors.163.com/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm

3.进行安装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-3.2.29-60.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-30.el6.noarch.rpm

注意最后两个包必需同时安装，否则会相互依赖

－－－－－－－－－－配置网易源

4.更新repo文件

mv /etc/yum.repos.d/rhel-source.repo /etc/yum.repos.d/rhel-source.repo.bak

vi /etc/yum.repos.d/rhel-debuginfo.repo

内容为：

[base]

name=CentOS-$releasever - Base

baseurl=http://mirrors.163.com/centos/6/os/$basearch/

gpgcheck=1

gpgkey=http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6

#released updates

[updates]

name=CentOS-$releasever - Updates

baseurl=http://mirrors.163.com/centos/6/updates/$basearch/

gpgcheck=1

gpgkey=http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6

#packages used/produced in the build but not released

#[addons]

#name=CentOS-$releasever - Addons

#baseurl=http://mirrors.163.com/centos/6/addons/$basearch/

#gpgcheck=1

#gpgkey=http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful

[extras]

name=CentOS-$releasever - Extras

baseurl=http://mirrors.163.com/centos/6/extras/$basearch/

gpgcheck=1

gpgkey=http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages

[centosplus]

name=CentOS-$releasever - Plus

baseurl=http://mirrors.163.com/centos/6./centosplus/$basearch/

gpgcheck=1

enabled=0

5、yum clean all

6、yum install vim #测试一下可不可以用，以下为部署成功后的运行界面：

如果使用过程中出现如下的NOKEY的提示的话：

warning: rpmts_HdrFromFdno: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY

执行如下命令即可：

rpm --import http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6

相关文件下载：yum-appendixes