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CentOS 更新系统

2011-02-16 20:18:09| 分类： CentOS | 标签： |举报 |字号大中小订阅

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CentOS 安装完毕，首先应该修改更新源，并升级到最新的系统。
国内速度比较快的更新源，我推荐：
http://mirrors.163.com 网易的更新源，刚发现的，速度还可以。

首先我们得先备份系统先前的配置文件CentOS-Base.repo：
sudo cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
编辑yum的配置文件：
sudo vi /etc/yum.repos.d/CentOS-Base.repo

把CenOS-Base-repo内文件的中的mirrorlist注释掉，然后把baseurl前的注释去掉，然后把源地址改为网易的

配置文件的内容为：

[base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#released updates
[updates]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/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=$basearch&repo=addons
baseurl=http://mirrors.163.com/centos/$releasever/addons/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/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=$basearch&repo=extras
baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/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=$basearch&repo=centosplus
baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

其中：

repositoryid:用于指定一个仓库

name：用于指定易读的仓库名称

baseurl：用于指定本仓库的URL，可以是以下的3种类型，如http,ftp,file

mirrorlist：用于指定仓库的镜像站点

enable：用于指定是否使用本仓库，默认值为1，即可用。

gpgcheck：用于指定是否检查软件包的GPG签名。

gpgkey：用于指定GPG签名文件的URL。

本人一般都是用root超级用户

如果是普通用户就在命令最前面加上sudo

执行命令：

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

yum update

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