在CentOS yum update命令下升级系统，自行配置更新源。

PS * * * * * * * * * * *中国科学技术大学(OK) * * * * * * * * * * * * * *

【教育网来源】

上海交通大学:/centos/

清华大学:/centos/

中国科学技术大学:/centos/(推荐，更快)

[电信网络来源]

上海电信:/centos/$ releaser/OS/$ basearch/

gpgcheck=1

gpg KEY =/CentOS/RPM-GPG-KEY-CentOS-5

#发布的更新

[更新]

name=CentOS-$releasever -更新

# mirror list =/centos/$ release ver/updates/$ base arch/

gpgcheck=1

gpg KEY =/CentOS/RPM-GPG-KEY-CentOS-5

在构建中使用/生成但未发布的包数

[插件]

name=CentOS-$releasever - Addons

# mirror list =/centos/$ release ver/addons/$ base arch/

gpgcheck=1

gpg KEY =/CentOS/RPM-GPG-KEY-CentOS-5

#可能有用的附加软件包

[临时演员]

name=CentOS-$releasever - Extras

# mirror list =/centos/$ release ver/extras/$ base arch/

gpgcheck=1

gpg KEY =/CentOS/RPM-GPG-KEY-CentOS-5

#扩展现有软件包功能的附加软件包

[centosplus]

name=CentOS-$releasever - Plus

# mirror list =/centos/$ release ver/cento plus/$ base arch/

gpgcheck=1

启用=0

gpg KEY =/CentOS/RPM-GPG-KEY-CentOS-5

(保存并退出:wq)

你现在可以品尝了。^_^