yum的优先级

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yum更新源优先级设置

1.安装 yum-priorities

yum install yum-priorities

2.priorities的配置文件是/etc/yum/pluginconf.d/priorities.conf，确认其是否存在。
其内容为:
[main]
enabled=1   # 0禁用 1启用

3.编辑 /etc/yum.repos.d/目录下的*.repo 文件来设置优先级。

参数为：

priority=N   # N的值为1-99

推荐的设置为：
[base], [addons], [updates], [extras] … priority=1
[centosplus],[contrib] … priority=2
Third Party Repos such as rpmforge … priority=N   (where N is > 10 and based on your preference)

数字越大,优先级越低

默认centos自带的源少了很多好软件，所以需要添加第三方源
一、安装CentOS yum源优先级插件yum-priorities
yum install yum-plugin-priorities.noarch
二、设置CentOS默认yum源的优先级为最高
cd /etc/yum.repos.d/   #进入yum源目录
vi CentOS-Base.repo    #在[base]、[updates]、[extras]组下面添加priority=1，在[centosplus]、[contrib]组下面添加priority=2
################################################################
[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

[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

[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

[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]
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
###############################################################
备注：priority的优先级为1到99，设置为1即优先级最高，1-10为系统保留，第三方yum源的优先级从11-99

三、安装epel yum源
    rpm -ivh http://download.fedora.redhat.com/pub/epel/6/i386/epel-release-6-5.noarch.rpm
    rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
    vi /etc/yum.repos.d/epel.repo   #修改epel yum源优先级，priority=11

###############################################################
    [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
#################################################################

四、安装rpmforge yum源
   wget http://apt.sw.be/redhat/el6/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.i686.rpm
   wget http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt
   rpm --import RPM-GPG-KEY.dag.txt
   rpm -ivh rpmforge-release-0.5.2-2.el6.rf.i686.rpm
   vi /etc/yum.repos.d/rpmforge.repo #修改rpmforge yum源优先级，priority=12

#################################################################
[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
#################################################################

五、安装rpmfusion yum源
   rpm -ivh http://download1.rpmfusion.org/free/el/updates/testing/6/i386/rpmfusion-free-release-6-0.1.noarch.rpm
   vi /etc/yum.repos.d/rpmfusion-free-updates-testing.repo   #修改rpmfusion yum源优先级，priority=13

#################################################################
[rpmfusion-free-updates-testing]
name=RPM Fusion for EL 6 - Free - Test Updates
#baseurl=http://download1.rpmfusion.org/free/el/updates/testing/6/$basearch/
mirrorlist=http://mirrors.rpmfusion.org/mirrorlist?repo=free-el-updates-testing-6&arch=$basearch
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-free-el-6
priority=13
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#################################################################
六、安装atomic yum源
    wget http://www.atomicorp.com/installers/atomic #下载
    sh ./atomic   #安装
    vi /etc/yum.repos.d/atomic.repo #修改atomic yum源优先级，priority=14
##############################################################
[atomic]
name = CentOS / Red Hat Enterprise Linux $releasever - atomicrocketturtle.com
mirrorlist = http://www.atomicorp.com/mirrorlist/atomic/centos-6-$basearch
#mirrorlist = http://www.atomicorp.com/channels/atomic/centos/6/mirrors-atomic
enabled = 1
priority = 1
protect = 0
gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY.art.txt
gpgcheck = 1
priority=14
##############################################################
七、更新yum软件包
       yum check-update

CentOS 5.5 使用 EPEL 和 RPMForge 软件库

一、安装 yum-priorities 插件

1、安装 yum-priorities 插件，并正确设置，以保证官方库的优先级最高。

yum -y install yum-priorities

2、然后，设置 /etc/yum.repos.d/CentOS-Base.repo，添加顺序指令 priority=N（N 从 1 至 99，1 优先级最高），对

[base]、[updates]、[addons]、[extras] 设置 priority=1，示例：
[centosplus]、[contrib] 设置 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-bit：rpm -ivh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm
64-bit：rpm -ivh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm

2、导入 DAG 的PGP Key

rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL

3、设置 /etc/yum.repos.d/epel.repo 中源的级别为 priority=11（比上面高就行）。

三、下载与安装相应 rpmforge 的 rpm 文件包

1、下载 rpmforge 的 rpm 文件包

32-bit：wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.i386.rpm
64-bit：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（跟原文方式不一致，如果直接 –import 不成功的话，可以使用下面的办法）

wget http://dag.wieers.com/packages/RPM-GPG-KEY.dag.txt
rpm --import RPM-GPG-KEY.dag.txt

3、验证 rpmforge 的 rpm 文件包

rpm -K rpmforge-release-0.5.1-1.el5.rf.*.rpm

4、安装 rpmforge 的 rpm 文件包

rpm -i rpmforge-release-0.5.1-1.el5.rf.*.rpm

5、然后再设置 /etc/yum.repos.d/rpmforge.repo 文件中源的级别为 priority=12（比上面高就行）。

CentOS 5.6 第三方软件源 --- 很重要

yum install yum-priorities
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）
Like:
[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
...
安装EPEL的rpm文件包

32位系统: rpm -ivh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm

64位系统: rpm -ivh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm

导入DAG的PGP Key: rpm –import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL

设置/etc/yum.repos.d/epel.repo文件中源的级别，就是添加priority=11这句。

[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

下载rpmforge的rpm文件包

32位系统: wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.i386.rpm

64位系统: wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm

安装DAG的PGP Key: rpm --import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt

安装rpmforge的rpm文件包: rpm -i rpmforge-release-0.5.1-1.el5.rf.*.rpm

设置/etc/yum.repos.d/rpmforge.repo文件中源的级别，就是添加priority=12这句。

### 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

yum check-update