CentOS系统yum源代码
2010-04-11 18:26:13 来源:WEB开发网大家应该对CentOS系统很了解了,CentOS系统应该是做为服务器的linux的佼佼者。CentOS系统采用的二进制包是rpm,不过包的依赖性解决有时候却是个问题。yum是个不错的东西。yum的使用和debian的apt有几分相似,这样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yum使用方法的整理;二是找一个比较快的国内的源。
1.CentOS系统yum的使用:
1)CentOS系统包的更新
1.1)检查可更新包: yum check-update
1.2)更新所有包: yum update
1.3)更新指定包: yum update package_name
1.4)版本升级: yum upgrade
2)CentOS系统包安装与删除
2.1)yum install package_name
2.2)yum remove package_name
3)CentOS系统包搜索
3.1)搜索特定包: yum search package_name
3.2)搜索包含特定文件名的包:yum provides name
4)CentOS系统包列表
4.1)列出所有安装或更新的包: yum list
4.2)列出指定包:yum list name
4.3)列出可更新包:yum list updates
4.4)列出已安装包:yum list installed
4.5)列出已安装但不包含在资源库中的包:yum list extras
2.CentOS系统yum源设定
2.1)加快yum下载速度: yum -y install yum-fastestmirror,在CentOs 4上名字叫做yum-plugin-fastestmirror
2.2)yum源文件:/etc/yum.repos.d/CentOS-Base.repo
2.3)CentOS 5的yum源设为中国科技大学网站
[root@xuxy ~]# cd /etc/yum.repos.d
2.备份repo
[root@xuxy yum.repos.d]# mv CentOS-Base.repo CentOS-Base.repo.bak
3.建立新的CentOS-Base.repo文件:(以CentOS 5.2为例)
[root@xuxy yum.repos.d]#vi CentOS-Base.repo
内容如下(以中国科技大学的yum源为例):
- # CentOS-Base.repo
- #
- # This file uses a new mirrorlist system developed by Lance Davis for CentOS.
- # 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=$basearch&repo=os
- baseurl=http://centos.ustc.edu.cn/centos/$releasever/os/$basearch/
- gpgcheck=1
- gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5
- #released updates
- [updates]
- name=CentOS-$releasever - Updates
- #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
- baseurl=http://centos.ustc.edu.cn/centos/$releasever/updates/$basearch/
- gpgcheck=1
- gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5
- #packages used/produced in the build but not released
- [addons]
- name=CentOS-$releasever - Addons
- #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons
- baseurl=http://centos.ustc.edu.cn/centos/$releasever/addons/$basearch/
- gpgcheck=1
- gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5
- #additional packages that may be useful
- [extras]
- name=CentOS-$releasever - Extras
- #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
- baseurl=http://centos.ustc.edu.cn/centos/$releasever/extras/$basearch/
- gpgcheck=1
- gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5
- #additional packages that extend functionality of existing packages
- [centosplus]
- name=CentOS-$releasever - Plus
- #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
- baseurl=http://centos.ustc.edu.cn/centos/$releasever/centosplus/$basearch/
- gpgcheck=1
- enabled=0
- gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5
以上,就是CentOS系统yum的使用方法和更新情况。
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