如何使用安装光盘为本机创建yum repository

在CentOS 6上可以使用系统安装光盘为本机创建yum repository，创建过程如下。

• 创建光盘mount点

[root@centos62 ~]# mkdir /media/CentOS

• mount安装盘

[root@centos62 ~]# mount /dev/sr0 /media/CentOS

mount: block device /dev/sr0 is write-protected, mounting read-only

[root@centos62 ~]# df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/mapper/vg_centos62-lv_root

                       18G  752M   16G   5% /

tmpfs                 495M     0  495M   0% /dev/shm

/dev/sda1             485M   31M  429M   7% /boot

/dev/sr0              4.2G  4.2G     0 100% /media/CentOS

• 修改yum repository配置

yum repository的配置文件存储在/etc/yum.repos.d目录下，修改repos配置如下所示(红色部分)

[root@centos62 ~]# cd /etc/yum.repos.d/

[root@centos62 yum.repos.d]# more CentOS-Media.repo

# CentOS-Media.repo

#

# This repo is used to mount the default locations for a CDROM / DVD on

#  CentOS-6.  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=c6-media [command]

#

# or for ONLY the media repo, do this:

#

#  yum --disablerepo=\* --enablerepo=c6-media [command]

[c6-media]

name=CentOS-$releasever - Media

baseurl=file:///media/CentOS/

        file:///media/cdrom/

        file:///media/cdrecorder/

gpgcheck=1

enabled=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

• disable base repository

将base repository配置文件重命名

[root@centos62 yum.repos.d]# mv CentOS-Base.repo CentOS-Base.repo.disabled

• 清除缓存并显示repository

[root@centos62 yum.repos.d]# yum clean all

Loaded plugins: fastestmirror

Cleaning repos: c6-media

Cleaning up Everything

Cleaning up list of fastest mirrors

[root@centos62 yum.repos.d]# yum repolist

Loaded plugins: fastestmirror

Determining fastest mirrors

 * c6-media:

c6-media                                                 | 4.0 kB     00:00 ...

c6-media/primary_db                                      | 4.5 MB     00:00 ...

repo id                          repo name                                status

c6-media                         CentOS-6 - Media                         6,294

repolist: 6,294