RHEL7.0安装初始默认没有任何yum 源，以挂载本地DVD到/mnt/cdrom，将系统yum源连接到/mnt/cdrom为例。# 用yum-config-manager生成一个源文件模版[root@server0 yum.repos.d]# yum-config-manager –add-repo=cdromLoaded plugins: langpacks, product-idadding repo from: cdrom[cdrom]name=added from: cdrombaseurl=cdromenabled=1# 将生成的模版编辑如下[root@server0 yum.repos.d]# cat cdrom.repo[cdrom]name=DVD Mediabaseurl=file:///mnt/cdromenabled=1# 挂载CDROM[root@server0 yum.repos.d]# mount /dev/cdrom /mnt/cdrom/mount: /dev/sr0 is write-protected, mounting read-only# 导入RPM-GPG-KEY [root@server0 yum.repos.d]# rpm –import /etc/pki/rpm-gpg/RPM-GPG-KEY-RedHat-xxxx# 查看[root@server0 ~]# yum repolistLoaded plugins: langpacks, product-id, subscription-managerThis system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.repo id repo name statuscdrom DVD Media 4,305repolist: 4,305
更多YUM相关教程见以下内容：
RedHat 6.2 Linux修改yum源免费使用CentOS源 http://www.68idc.cn/Linux/2013-07/87383.htm
配置EPEL YUM源 http://www.68idc.cn/Linux/2012-10/71850.htm
Redhat 本地yum源配置 http://www.68idc.cn/Linux/2012-11/75127.htm
yum的配置文件说明 http://www.68idc.cn/Linux/2013-04/83298.htm
RedHat 6.1下安装yum(图文) http://www.68idc.cn/Linux/2013-06/86535.htm
YUM 安装及清理 http://www.68idc.cn/Linux/2013-07/87163.htm
CentOS 6.4上搭建yum本地源 http://www.68idc.cn/Linux/2014-07/104533.htm
更多RedHat相关信息见RedHat 专题页面 http://www.68idc.cn/topicnews.aspx?tid=10
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沿途跟着一条河，你看着它在晨光暮霭中变换着色彩，
