yum的安装配置指令详解.doc

yum的安装配置 指令详解 一. yum是什么 yum = Yellow dog Updater, Modified主要功能是更方便的添加/删除/更新RPM包.它能自动解决包的倚赖性问题.它能便于管理大量系统的更新问题注:为什么要使用yum而不用apt,最简单的原因Centos自带 二. yum特点 *可以同时配置多个资源库(Repository)*简洁的配置文件(/etc/yum.conf，/etc/yum.repos.d 下的文件)*自动解决增加或删除rpm包时遇到的倚赖性问题*使用方便*保持与RPM数据库的一致性 三. yum安装 Centos自带#rpm -ivh yum-2.4.3-4.el4.centos.noarch.rpm CentOS采用的二进制包是rpm，不过包的依赖性解决有时候却是个问题。我比较喜欢debian的apt,非常方便。以前以为RedHat linux没这么方便，后来发现CentOS yum是个不错的东西。CentOS yum使用和apt有几分相似，这样一来对于许多包的安装就方便多了。这篇文章主要讲两点内容，一是CentOS yum使用方法的整理;二是找一个比较快的国内的源，这样一来，CentOS yum使用的大体过程就解决了。 四.CentOS yum配置: 1.加快yum下载速度: yum -y install yum-fastestmirror,在CentOs 4上名字叫做yum-plugin-fastestmirror 2.yum源文件:/etc/yum.repos.d/CentOS-Base.repo 3.CentOS 5的yum源设为上海交通大学网站 ?CentOS-Base.repo[base]name=CentOS-5 - Base#mirrorlist=?/?release=$releasever5arch=$basearchrepo=os#baseurl=?/centos/$releasever/os/$basearch/baseurl=?/centos/5.0/os/$basearch/gpgcheck=1gpgkey=?/centos/RPM-GPG-KEY-centos5 #released updates[update]name=CentOS-5 - Updates#mirrorlist=?/?release=4arch=$basearchrepo=updatesbaseurl=?/centos/5.0/updates/$basearch/gpgcheck=1gpgkey=?/centos/RPM-GPG-KEY-centos5 #packages used/produced in the build but not released[addons]name=CentOS-5 - Addons#mirrorlist=?/?release=4arch=$basearchrepo=addons baseurl=?/centos/5.0/addons/$basearch/gpgcheck=1gpgkey=?/centos/RPM-GPG-KEY-centos5 #additional packages that may be useful[extras]name=CentOS-5 - Extras#mirrorlist=?/?release=4arch=$basearchrepo=extras baseurl=?/centos/5.0/extras/$basearch/gpgcheck=1gpgkey=?/centos/RPM-GPG-KEY-centos5 #additional packages that extend functionality of existing packages[centosplus]name=CentOS-5 - Plus#mirrorlist=?/?release=4arch=$basearchrepo=centosplusbaseurl=?/centos/5.0/centosplus/$basearch/gpgcheck=1enabled=0gpgkey=?/centos/RPM-GPG-KEY-centos5 #contrib - packages by Centos Users[contrib]name=CentOS-5 - Contrib#mirrorlist=?/?release=4arch=$basearchrepo=contribbaseurl=?/centos/5.0/contrib/$basearch/gpgcheck=1enabl