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centos使用光盘作为本地的yum源

2012-11-08  MikeDoc
转自:http://qubaoquan.blog.51cto.com/1246748/292516

建立文件夹

[root@localhost CentOS]# mkdir /media/CentOS

把光盘加载到本地

[root@localhost CentOS]# mount /dev/cdrom /media/CentOS

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]

[c5-media]
name=CentOS-$releasever - Media
baseurl=file:///media/ CentOS
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-beta

我们只需编辑下bashurl ,将自己的光盘路径写入就可以了。

clip_image002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]

yum命令允许使用本地media介质的源而已。正确的命令如下(更新gcc为例):

clip_image001 [root@centos cdrom]# yum --disablerepo =* --enablerepo=c5-media install gcc

clip_image001[1] clip_image002[1]Loading " installonlyn " plugin
clip_image002[2]Setting up Update Process
clip_image002[3]Setting up repositories
clip_image002[4]c5 - media                   100 % |=========================| 1.1 kB     00 : 00
clip_image002[5]Reading repository metadata in from local files
clip_image002[6]primary.xml.gz             100 % |=========================| 834 kB     00 : 00
clip_image002[7]################################################## 2400 / 2400
clip_image002[8]No Packages marked for Update / Obsoletion
clip_image002[9]

比如安装gdb

clip_image002[10][root@centos cdrom]# yum --disablerepo =* --enablerepo=c5-media install gdb
clip_image002[11]Loading " installonlyn " plugin
clip_image002[12]Setting up Install Process
clip_image002[13]Setting up repositories
clip_image002[14]Reading repository metadata in from local files
clip_image002[15]Parsing package install arguments
clip_image002[16]Resolving Dependencies
clip_image002[17]--> Populating transaction set with selected packages. Please wait.
clip_image002[18]---> Downloading header for gdb to pack into transaction set .
clip_image002[19]gdb - 6.5 - 25 .el5.i386.rpm    100 % |=========================| 56 kB     00 : 00
clip_image002[20]---> Package gdb.i386 0 : 6.5 - 25 .el5 set to be updated
clip_image002[21]--> Running transaction check
clip_image002[22]
clip_image002[23]Dependencies Resolved
clip_image002[24]
clip_image002[25]=============================================================================
clip_image002[26]Package                  Arch        Version           Repository         Size
clip_image002[27]=============================================================================
clip_image002[28]Installing:
clip_image002[29]gdb                      i386        6.5 - 25 .el5        c5 - media           3.1 M
clip_image002[30]
clip_image002[31]Transaction Summary
clip_image002[32]=============================================================================
clip_image002[33]Install       1 Package(s)         
clip_image002[34]Update        0 Package(s)         
clip_image002[35]Remove        0 Package(s)         
clip_image002[36]
clip_image002[37]Total download size: 3.1 M
clip_image002[38]Is this ok [y / N]: y
clip_image002[39]Downloading Packages:
clip_image002[40]Running Transaction Test
clip_image002[41]Finished Transaction Test
clip_image002[42]Transaction Test Succeeded
clip_image002[43]Running Transaction
clip_image002[44]   Installing: gdb                           ######################### [ 1 / 1 ]
clip_image002[45]
clip_image002[46]Installed: gdb.i386 0 : 6.5 - 25 .el5
clip_image002[47]Complete !
clip_image002[48][root@centos cdrom]#
clip_image002[49]

在使用yum进行install时,经常会出现下面的错误
warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 1ac70ce6
导致安装不能进行。解决方法如下:
[root@localhost CentOS]# rpm --import   /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[root@localhost CentOS]# rpm --import   /etc/pki/rpm-gpg/RPM-GPG-KEY-beta


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