(总结)RHEL/CentOS 5.x使用第三方软件库(EPEL与RPMForge、RPMFusion软件库)

以下转载自http://www.ha97.com/2626.html

在CentOS下运行yum install flash-plugin或yum install mplayer的时候,提示库里没有找到这个软件?为什么会这样?因为CentOS是RHEL编译过来的,去掉了所有关于版权问题的东西。因此,在没有使用第三方软件库的情况下,很多软件无法用yum install来直接安装。
 
EPEL(Extra Packages for Enterprise Linux )软件库提供为 EL4 及 EL5 重新编译的 Fedora 组件。这个软件库在不替换系统组件方面下了功夫。在某些情况下它尝试直接针对 CentOS 兼容性的问题,但坚决否定软件库间的兼容性是目标之一。当它与其它第三方软件库混合使用时,问题可能会出现。故此,当你使用 EPEL 时,尤其是当你亦会运用其它件库的组件时,请确保你使用 yum 的 Priorities 插件。
 
RPMForge库现在已经拥有超过10000种的CentOS的软件包,被CentOS社区认为是最安全也是最稳定的一个第三方软件库。
 
下面,偶就来讲解下如何使用EPEL与RPMForge、RPMFusion软件仓库:
 
一、安装yum-priorities插件。
 
这个插件是用来设置yum在调用软件源时的顺序的。因为官方提供的软件源,都是比较稳定和被推荐使用的。因此,官方源的顺序要高于第三方源的顺序。如何保证这个顺序,就需要安装yum-priorities这插件了。
 
[root@CentOS ~]# yum install yum-priorities #安装yum-priorities
 
安装完后需要设置/etc/yum.repos.d/ 目录下的.repo相关文件(如CentOS-Base.repo),在这些文件中插入顺序指令:priority=N (N为1到99的正整数,数值越小越优先)
 
一般的配置是这样的:

[base], [addons], [updates], [extras] … priority=1
 [CentOSplus],[contrib] … priority=2
 其他第三的软件源为:priority=N (推荐N>10)
 
如我的CentOS-Base.repo配置为:

# CentOS-Base.repo
 #
 # The mirror system uses the connecting IP address of the client and the
 # update status of each mirror to pick mirrors that are updated to and
 # geographically close to the client. You should use this for CentOS updates
 # unless you are manually picking other mirrors.
 #
 # If the mirrorlist= does not work for you, as a fall back you can try the
 # remarked out baseurl= line instead.
 #
 #
 
[base]
 name=CentOS-$releasever – Base
 mirrorlist=http://mirrorlist.CentOS.org/?release=$releasever&arch=$basearch&repo=os
 #baseurl=http://mirror.CentOS.org/CentOS/$releasever/os/$basearch/
 gpgcheck=1
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
 priority=1
 
#released updates
 [updates]
 name=CentOS-$releasever – Updates
 mirrorlist=http://mirrorlist.CentOS.org/?release=$releasever&arch=$basearch&repo=updates
 #baseurl=http://mirror.CentOS.org/CentOS/$releasever/updates/$basearch/
 gpgcheck=1
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
 priority=1
 
#packages used/produced in the build but not released
 [addons]
 name=CentOS-$releasever – Addons
 mirrorlist=http://mirrorlist.CentOS.org/?release=$releasever&arch=$basearch&repo=addons
 #baseurl=http://mirror.CentOS.org/CentOS/$releasever/addons/$basearch/
 gpgcheck=1
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
 priority=1
 
#additional packages that may be useful
 [extras]
 name=CentOS-$releasever – Extras
 mirrorlist=http://mirrorlist.CentOS.org/?release=$releasever&arch=$basearch&repo=extras
 #baseurl=http://mirror.CentOS.org/CentOS/$releasever/extras/$basearch/
 gpgcheck=1
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
 priority=1
 
#additional packages that extend functionality of existing packages
 [CentOSplus]
 name=CentOS-$releasever – Plus
 mirrorlist=http://mirrorlist.CentOS.org/?release=$releasever&arch=$basearch&repo=CentOSplus
 #baseurl=http://mirror.CentOS.org/CentOS/$releasever/CentOSplus/$basearch/
 gpgcheck=1
 enabled=0
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
 priority=2
 
#contrib – packages by CentOS Users
 [contrib]
 name=CentOS-$releasever – Contrib
 mirrorlist=http://mirrorlist.CentOS.org/?release=$releasever&arch=$basearch&repo=contrib
 #baseurl=http://mirror.CentOS.org/CentOS/$releasever/contrib/$basearch/
 gpgcheck=1
 enabled=0
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
 priority=2
 
二、下载与安装相应EPEL的rpm文件包
 
1,下载与安装EPEL的rpm文件包
 
32位系统

[root@CentOS ~]# rpm -ivh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm
 
64位系统

[root@CentOS ~]# rpm -ivh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
 
如果您不清楚您的系统内核,请使用 uname -a 命令来查看您的内核信息。
 
2,导入DAG的PGP Key
 
[root@CentOS ~]# rpm –import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL
 
3,设置/etc/yum.repos.d/epel.repo文件中源的级别,就是添加priority=11这句。
 
如我的epel.repo文件内容:

[epel]
 name=Extra Packages for Enterprise Linux 5 – $basearch
 #baseurl=http://download.fedoraproject.org/pub/epel/5/$basearch
 mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-5&arch=$basearch
 failovermethod=priority
 enabled=1
 gpgcheck=1
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL
 priority=11
 
[epel-debuginfo]
 name=Extra Packages for Enterprise Linux 5 – $basearch – Debug
 #baseurl=http://download.fedoraproject.org/pub/epel/5/$basearch/debug
 mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-debug-5&arch=$basearch
 failovermethod=priority
 enabled=0
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL
 gpgcheck=1
 
[epel-source]
 name=Extra Packages for Enterprise Linux 5 – $basearch – Source
 #baseurl=http://download.fedoraproject.org/pub/epel/5/SRPMS
 mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-source-5&arch=$basearch
 failovermethod=priority
 enabled=0
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL
 gpgcheck=1
 
三、下载与安装相应rpmforge的rpm文件包
 
1,下载rpmforge的rpm文件包
 
32位系统

[root@CentOS ~]# wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.i386.rpm
 
64位系统

[root@CentOS ~]# wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm
 
2,安装DAG的PGP Key

[root@CentOS ~]# rpm –import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt
 
3,验证rpmforge的rpm文件包

[root@CentOS ~]# rpm -K rpmforge-release-0.5.1-1.el5.rf.*.rpm
 
4,安装rpmforge的rpm文件包

[root@CentOS ~]# rpm -i rpmforge-release-0.5.1-1.el5.rf.*.rpm
 
5,设置/etc/yum.repos.d/rpmforge.repo文件中源的级别,就是添加priority=12这句。
 
如我的rpmforge.repo文件内容:

### Name: RPMforge RPM Repository for Red Hat Enterprise 5 – dag
 ### URL: http://rpmforge.net/
 [rpmforge]
 name = Red Hat Enterprise $releasever – RPMforge.net – dag
 baseurl = http://apt.sw.be/redhat/el5/en/$basearch/rpmforge
 mirrorlist = http://apt.sw.be/redhat/el5/en/mirrors-rpmforge
 #mirrorlist = file:///etc/yum.repos.d/mirrors-rpmforge
 enabled = 1
 protect = 0
 gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmforge-dag
 gpgcheck = 1
 priority=12
 
四、下载与安装相应rpmfusion的rpm文件包
 
(CentOS官方说这个软件库里面的软件稳定性不如rpmforge,选用!rpmfusion官方站:http://rpmfusion.org

[root@CentOS ~]# rpm -Uvh http://download1.rpmfusion.org/free/el/updates/testing/5/i386/rpmfusion-free-release-5-0.1.noarch.rpm
 
[root@CentOS ~]# rpm -Uvh http://download1.rpmfusion.org/nonfree/el/updates/testing/5/i386/rpmfusion-nonfree-release-5-0.1.noarch.rpm
 
五、测试
 
1,测试升级
 
[root@CentOS ~]# yum check-update
 
输出信息应该会有以下两行:
 
Loading “priorities” plugin
 …
 XX packages excluded due to repository priority protections
 
2,安装下mplayer播放器试试,如果安装成功了就没有问题了。
 
[root@CentOS ~]# yum install mplayer
 
PS:以上配置在RHEL/CentOS 5.X所有系列都可以使用!由本人验证总结整理。
 
参考文档:http://wiki.centos.org/zh/AdditionalResources/Repositories/RPMForge

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