1、VMware虛擬化平臺，在vCenter將本地儲存的Centos ISO掛載到到虛擬伺服器上。

2、建立 目錄/mnt/cdrom

[[email protected] ~]# mkdir /mnt/cdrom

3、將映象掛載到目錄

[[email protected] ~]# mount -o ro /dev/cdrom /mnt/cdrom/

4、備份之前的CentOS-Base.repo Yum源

[[email protected] ~]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

[[email protected] ~]# cd /etc/yum.repos.d/

5、修改CentOS-Media.repo

[[email protected] yum.repos.d]# vi CentOS-Media.repo

# CentOS-Media.repo

#

# This repo can be used with mounted DVD media, verify the mount point for

# CentOS-7. You can use this repo and yum to install items directly off the

# DVD ISO that we release.

#

# To use this repo, put in your DVD and use it with the other repos too:

# yum --enablerepo=c7-media [command]

#

# or for ONLY the media repo, do this:

#

# yum --disablerepo=\* --enablerepo=c7-media [command]

[c7-media]

name=CentOS-$releasever - Media

baseurl=file:///mnt/cdrom                          #增加這一行

#baseurl=file:///media/CentOS/                #將這一行註釋

# file:///media/cdrom/                                #將這一行註釋

# file:///media/cdrecorder/                         #將這一行註釋

gpgcheck=1

enabled=1 #將0改成1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

6、執行yum clean all和yum makecache

[[email protected] yum.repos.d]# yum clean all

[[email protected] yum.repos.d]# yum makecache

Loaded plugins: fastestmirror, langpacks

Determining fastest mirrors

c7-media | 3.6 kB 00:00:00

(1/4): c7-media/group_gz | 166 kB 00:00:00

(2/4): c7-media/primary_db | 5.9 MB 00:00:00

(3/4): c7-media/filelists_db | 6.9 MB 00:00:00

(4/4): c7-media/other_db | 2.5 MB 00:00:00

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