RedHat yum安装配置命令详解

首先,rhel5系统安装的时候其实已经有yum了,只是因为如果用官方的网站更新的话除非你是用钱买的rhel5.否则它会提
  示注册之类的。所以只要把 yum的更新地址改成开源的就行了。而限定yum更新地址的文件在/etc/yum.repos.d/里。先把
  它们改成备份文件,即在后面加.bak。
  [root@killgoogle ~]# mv /etc/yum.repos.d/rhel-debuginfo.repo /etc/yum.repos.d/rhel-debuginfo.repo.bak
  [root@killgoogle ~]# mv /etc/yum.repos.d/rpmforge.repo.rpmnew /etc/yum.repos.d/rpmforge.repo.rpmnew.bak
  建立新的配置文件:
  [root@killgoogle ~]# cd /etc/yum.repos.d
  [root@killgoogle ~]# touch rhel-debuginfo.repo
  [root@killgoogle ~]# touch mirrors-rpmforge
  [root@killgoogle ~]# touch rpmforge.repo
  往新的配置文件写东西:
  [root@killgoogle ~]#vi rhel-debuginfo.repo
  [base]
  name=CentOS-5 �C 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/$basearch/
  gpgcheck=1
  gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5
  #released updates
  [update]
  name=CentOS-5 �C Updates
  #mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=updates
  baseurl=http://ftp.sjtu.edu.cn/centos/5/updates/$basearch/
  gpgcheck=1
  gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5
  #packages used/produced in the build but not released
  [addons]
  name=CentOS-5 �C Addons
  #mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=addons
  baseurl=http://ftp.sjtu.edu.cn/centos/5/addons/$basearch/
  gpgcheck=1
  gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5
  #additional packages that may be useful
  [extras]
  name=CentOS-5 �C Extras
  #mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=extras
  baseurl=http://ftp.sjtu.edu.cn/centos/5/extras/$basearch/
  gpgcheck=1
  gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5
  #additional packages that extend functionality of existing packages
  [centosplus]
  name=CentOS-5 �C Plus
  #mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=centosplus
  baseurl=http://ftp.sjtu.edu.cn/centos/5/centosplus/$basearch/
  gpgcheck=1
  enabled=0
  gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5
  #contrib �C packages by Centos Users
  [contrib]
  name=CentOS-5 �C Contrib
  #mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=contrib
  baseurl=http://ftp.sjtu.edu.cn/centos/5/contrib/$basearch/
  gpgcheck=1
  enabled=0
  gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5
  # vi dag.repo
  [dag]
  name=Dag RPM Repository for RHEL5
  baseurl=http://ftp.riken.jp/Linux/dag/redhat/el5/en/$basearch/dag/
  enabled=1
  gpgcheck=1
  gpgkey=http://ftp.riken.jp/Linux/dag/packages/RPM-GPG-KEY.dag.txt
  ――――――――――――
  修改后使用yum可能会报如下错误:
  centos yum warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID e8562897
  解决方法
  引用warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID*****
  这是由于yum安装了旧版本的GPG keys造成的,解决办法就是
  引用rpm �Cimport /etc/pki/rpm-gpg/RPM*
  再安装软件就不会有这个错误提示了。

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