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centos使用光盘作为本地的yum源

见识了yum的缓慢,有人说yum就是郁闷,用惯了apt用yum还真是郁闷,关键是速度...速度就是效率阿.
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]

PS:
这个文件内原本是
baseurl=file:///media/CentOS/
        file:///media/cdrom/
        file:///media/cdrecorder/
这个的CentOS就是你光盘挂载过来在/media目录中的名字,我起先没改就error了.我的光盘是CentOS_5.2_Final,改为
baseurl=file:///media/CentOS_5.2_Final/
        file:///media/cdrom/
        file:///media/cdrecorder/
就OK了,根据自己实际情况改....


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]# [color="#ff0000"]yum [color="#ff0000"]--disablerepo[color="#ff0000"]=[color="#ff0000"]* --[color="#ff0000"]enablerepo=[color="#ff0000"]c5-[color="#ff0000"]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]# [color="#ff0000"]yum [color="#ff0000"]--[color="#ff0000"]disablerepo[color="#ff0000"]=* [color="#ff0000"]--[color="#ff0000"]enablerepo[color="#ff0000"]=[color="#ff0000"]c5[color="#ff0000"]-[color="#ff0000"]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]# 

                
                (责任编辑:IT)