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让CentOS6 yum源支持更多rpm包的升级(使用第三方软件库EPEL、RPMForge与RPMFusion)

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RHEL系列(4.x、5.x、6.x等等)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。

RedHat Linux 本地yum源的配置 http://www.linuxidc.com/Linux/2013-08/88217.htm

RedHat 6.2 Linux修改yum源免费使用CentOS源 http://www.linuxidc.com/Linux/2013-07/87383.htm

配置EPEL YUM源 http://www.linuxidc.com/Linux/2012-10/71850.htm

Redhat 本地yum源配置 http://www.linuxidc.com/Linux/2012-11/75127.htm

yum的配置文件说明 http://www.linuxidc.com/Linux/2013-04/83298.htm

RedHat 6.1下安装yum(图文) http://www.linuxidc.com/Linux/2013-06/86535.htm

YUM 安装及清理 http://www.linuxidc.com/Linux/2013-07/87163.htm

 
下面讲解下如何使用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 6.0):
 # 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-6
 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-6
 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-6
 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-6
 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-6
 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-6
 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/6/i386/epel-release-6-5.noarch.rpm
 
64位系统
 [root@CentOS ~]# rpm -ivh http://download.fedora.redhat.com/pub/epel/6/x86_64/epel-release-6-5.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-6
 
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 6 – $basearch
 #baseurl=http://download.fedoraproject.org/pub/epel/6/$basearch
 mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
 failovermethod=priority
 enabled=1
 gpgcheck=1
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
 priority=11
 
[epel-debuginfo]
 name=Extra Packages for Enterprise Linux 6 – $basearch – Debug
 #baseurl=http://download.fedoraproject.org/pub/epel/6/$basearch/debug
 mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-debug-6&arch=$basearch
 failovermethod=priority
 enabled=0
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
 gpgcheck=1
 
[epel-source]
 name=Extra Packages for Enterprise Linux 6 – $basearch – Source
 #baseurl=http://download.fedoraproject.org/pub/epel/6/SRPMS
 mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-source-6&arch=$basearch
 failovermethod=priority
 enabled=0
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
 gpgcheck=1
 

更多详情见请继续阅读下一页的精彩内容: http://www.linuxidc.com/Linux/2014-08/106024p2.htm

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://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.i686.rpm
 
64位系统
 [root@CentOS ~]# wget rpmforge-release-0.5.2-2.el6.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-0.5.2-2.el6.rf.*.rpm
 如果报XXX not an rpm package的错,查看是否wget下载的包不完整,包的大小是12K
 
4、安装rpmforge的rpm文件包
 
[root@CentOS ~]# rpm -ivh rpmforge-release-0.5.2-2.el6.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 RHEL 6 – dag
 ### URL: http://rpmforge.net/
 [rpmforge]
 name = RHEL $releasever – RPMforge.net – dag
 baseurl = http://apt.sw.be/RedHat/el6/en/$basearch/rpmforge
 mirrorlist = http://apt.sw.be/redhat/el6/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
 
[rpmforge-extras]
 name = RHEL $releasever – RPMforge.net – extras
 baseurl = http://apt.sw.be/redhat/el6/en/$basearch/extras
 mirrorlist = http://apt.sw.be/redhat/el6/en/mirrors-rpmforge-extras
 #mirrorlist = file:///etc/yum.repos.d/mirrors-rpmforge-extras
 enabled = 0
 protect = 0
 gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmforge-dag
 gpgcheck = 1
 
[rpmforge-testing]
 name = RHEL $releasever – RPMforge.net – testing
 baseurl = http://apt.sw.be/redhat/el6/en/$basearch/testing
 mirrorlist = http://apt.sw.be/redhat/el6/en/mirrors-rpmforge-testing
 #mirrorlist = file:///etc/yum.repos.d/mirrors-rpmforge-testing
 enabled = 0
 protect = 0
 gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmforge-dag
 gpgcheck = 1
 
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/6/i386/rpmfusion-free-release-6-0.1.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、测试各插件是否生效
 
[root@CentOS ~]# yum check-update
 如果出现类似以下输出,则表示配置成功。
 Loaded plugins: fastestmirror, priorities, refresh-packagekit
 Loading mirror speeds from cached hostfile
 下面是一长串软件列表,最后一列形如:
 epel   
 rpmforge
 base
 说明各个软件包的来源。
 
备注:
 1、如果yum使用过程中出现类似以下错误,多半是因为rpmfusion的server无法连接,可以不用管它,或者将/etc/yum.repo.d/目录下rpmfusion相关的的repo文件中的enable=1改为0,关掉rpmfusion相关的源列表。
 YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
  Eg. </script><frameset rows=”*,0″><frame id=”main” src=””><frame id=”fr1″ src=””></frameset><body></body></html>/
 
2、rpmfusion还会出现类似如下错误:
 Error: Cannot retrieve repository metadata (repomd.xml) for repository: rpmfusion-foo. Please verify its path and try again
 原因引自http://rpmfusion.org/FAQ#head-33eabca99c1c4fa289a1d757bda49721cd27871a:
 Yum cannot connect to the RPM Fusion servers if you get above message. That could be a problem with your local network or a problem with the MirrorManager servers from RPM Fusion. If it’s the latter use this comment to temporary work around the problem:
 方法是去除所有baseurl和mirrorlist前面的#如下:
 su -c “sed -i ‘s|^#baseurl|baseurl| ; s|^mirrorlist|#mirrorlist|’ /etc/yum.repos.d/rpmfusion*free*repo”
 
To undo the change later use this command:
 su -c “sed -i ‘s|^baseurl|#baseurl| ; s|^#mirrorlist|mirrorlist|’ /etc/yum.repos.d/rpmfusion*free*repo”

更多CentOS相关信息见CentOS 专题页面 http://www.linuxidc.com/topicnews.aspx?tid=14

本文永久更新链接地址:http://www.linuxidc.com/Linux/2014-08/106024.htm

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