centos使用光盘作为本地的yum源

在/etc/yum.repos.d/目录下，有两个文件

CentOS-Base.repo和CentOS-Media.repo

其中CentOS-Base.repo记录着网络上的yum源的地址和路径信息等

CentOS-Media.repo记录着可以从本地作为yum源的介质和路径。其中还有这样一个说明：


# CentOS-Media.repo


#


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


# CentOS-5. 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=c5-media [command]


#


# or for ONLY the media repo, do this:


#


# yum --disablerepo=* --enablerepo=c5-media [command]





觉得自己的光盘的源足够用了。不需要网络源，或者没有网络。

可以使用yum --disablerepo=/* --enablerepo=c5-media [command]

但是使用命令时如果这样


[root@centos yum.repos.d]# yum --enablerepo=c5-media


Loading "installonlyn" plugin


You need to give some command



这不是一个完整的命令，须在后面加上要执行的命令。这部分只是告诉你这条yum命令允许使用本地media介质的源而已。正确的命令如下：


[root@centos cdrom]# yum --disablerepo=* --enablerepo=c5-media update


Loading "installonlyn" plugin


Setting up Update Process


Setting up repositories


c5-media 100% |=========================| 1.1 kB 00:00


Reading repository metadata in from local files


primary.xml.gz 100% |=========================| 834 kB 00:00


################################################## 2400/2400


No Packages marked for Update/Obsoletion



比如安装gdb


[root@centos cdrom]# yum --disablerepo=* --enablerepo=c5-media install gdb


Loading "installonlyn" plugin


Setting up Install Process


Setting up repositories


Reading repository metadata in from local files


Parsing package install arguments


Resolving Dependencies


--> Populating transaction set with selected packages. Please wait.


---> Downloading header for gdb to pack into transaction set.


gdb-6.5-25.el5.i386.rpm 100% |=========================| 56 kB 00:00


---> Package gdb.i386 0:6.5-25.el5 set to be updated


--> Running transaction check




Dependencies Resolved




=============================================================================


Package Arch Version Repository Size


=============================================================================


Installing:


gdb i386 6.5-25.el5 c5-media 3.1 M




Transaction Summary


=============================================================================


Install 1 Package(s)


Update 0 Package(s)


Remove 0 Package(s)




Total download size: 3.1 M


Is this ok [y/N]: y


Downloading Packages:


Running Transaction Test


Finished Transaction Test


Transaction Test Succeeded


Running Transaction


Installing: gdb ######################### [1/1]




Installed: gdb.i386 0:6.5-25.el5


Complete!


[root@centos cdrom]#