redhat Linux配置yum更新源

YUM是RedHat Linux線上安裝更新及軟體的工具，但是這是RHEL5的收費功能，如果沒有購買Redhat的服務時不能使用RHEL5的更新源的，會提示注冊。

由于CentOS是從RedHat演化而來的免費Linux版本，是以可以利用CentOS的yum更新源來實作RHEL5的YUM功能。配置方法如下：

檢查yum是否安裝，預設情況下都是安裝好的，總共4各包。

[[email protected] ~]# rpm -qa |grep yum

yum-metadata-parser-1.0-8.fc6

yum-3.0.1-5.el5

yum-rhn-plugin-0.4.3-1.el5

yum-updatesd-3.0.1-5.el5

配置yum更新源

建立/etc/yum.repos.d/CentOS-Base.repo 檔案，定義yum更新源，www.linuxidc.com這裡使用的是上海交大的CentOS更新源

[[email protected] ~]# vi /etc/yum.repos.d/CentOS-Base.repo

[base]

name=CentOS-5-Base

#mirrorlist=http://mirrorlist.centos.org/?release=$releasever5&arch=$basearch&repo=os

#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/

baseurl=http://ftp.sjtu.edu.cn/centos/5/os/$basearch/

gpgcheck=0

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#released updates

[update]

name=CentOS-5-Updates

#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=updates

baseurl=http://ftp.sjtu.edu.cn/centos/5/updates/$basearch/

gpgcheck=0

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#packages used/produ ced in the build but not released

[addons]

name=CentOS-5-Addons

#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=addons

baseurl=http://ftp.sjtu.edu.cn/centos/5/addons/$basearch/

gpgcheck=0

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#additional packages that may be useful

[extras]

name=CentOS-5-Extras

#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=extras

baseurl=http://ftp.sjtu.edu.cn/centos/5/extras/$basearch/

gpgcheck=0

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#additional packages that extend functionality of existing packages

[centosplus]

name=CentOS-5-Plus

#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=centosplus

baseurl=http://ftp.sjtu.edu.cn/centos/5/centosplus/$basearch/

gpgcheck=0

enabled=0

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#contrib - packages by Centos Users

[contrib]

name=CentOS-5-Contrib

#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=contrib

baseurl=http://ftp.sjtu.edu.cn/centos/5/contrib/$basearch/

gpgcheck=0

enabled=0

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

# vi dag.repo

[dag]

name=Dag RPM Repository for RHEL5

baseurl=http://ftp.riken.jp/Linux/dag/RedHat/el5/en/$basearch/dag/

enabled=1

gpgcheck=0

gpgkey=http://ftp.riken.jp/Linux/dag/packages/RPM-GPG-KEY.dag.txt

最後執行yum update.

清理yum緩存

# yum clean all
# yum makecache     #将伺服器上的軟體包資訊緩存到本地,以提高搜尋安裝軟體的速度