1、下载安装包
#wget http://tel.mirrors.163.com/CentOS/6/os/x86_64/Packages/yum-3.2.27-14.el6.centos.noarch.rpm
#wget http://tel.mirrors.163.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-14.1.el6.x86_64.rpm
#wget http://tel.mirrors.163.com/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.26-11.el6.noarch.rpm
#wget http://tel.mirrors.163.com/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
注：需要注意的是这个下载的路径在近期是可以的，时间长的话有可能会改变地址
2、卸载原有的rpm包
#rpm -qa|grep yum
#rpm -e --nodeps yum-*(查出来的包的名称）
3、安装新的包
#rpm -ivh python-iniparse-0.3.1-2.1.el6.noarch.rpm
#rpm -ivh yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
#rpm -ivh yum-3.2.29-40.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm
二、配置文件
1、下载CentOS6-Base-163.repo
#cd /etc/yum.repos.d
#mv CentOS6-Base-163.repo CentOS6-Base-163.repo.bak
#wget http://mirrors.163.com/.help/centos.html?1304848825/CentOS6-Base-163.repo
2、配置
#vi CentOS6-Base-163.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/$basearch/
gpgcheck=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5
#packages used/produced in the build but not released
[addons]
name=CentOS-5-Addons
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$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
[root@localhost yum.repos.d]# yum clean all Loaded plugins: product-id, refresh-packagekit, security, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. Cleaning repos: addons base dag extras update Cleaning up Everything [root@localhost yum.repos.d]# [root@localhost yum.repos.d]# yum makecache Loaded plugins: product-id, refresh-packagekit, security, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. addons | 1.9 kB 00:00 addons/filelists_db | 570 B 00:00 addons/primary_db | 1.1 kB 00:00 addons/other_db | 554 B 00:00 base | 1.1 kB 00:00 base/group | 1.1 MB 00:07 base/filelists | 3.7 MB 00:32 base/primary | 1.3 MB 00:11 base/other | 14 MB 01:51 base 3667/3667 base 3667/3667 base 3667/3667 dag | 1.9 kB 00:00 dag/filelists_db | 6.1 MB 09:28 dag/primary_db | 7.0 MB 08:19 dag/other_db | 1.5 MB 01:56 extras | 2.1 kB 00:00 extras/group | 9.7 kB 00:00 extras/filelists_db | 224 kB 00:06 extras/primary_db | 173 kB 00:05 extras/other_db | 442 kB 00:15 update | 1.9 kB 00:00 update/filelists_db | 3.1 MB 01:07 update/primary_db | 700 kB 00:13 update/other_db | 17 MB 05:01 Metadata Cache Created [root@localhost yum.repos.d]# [root@localhost yum.repos.d]#
导入key [root@linux-a ~]# rpm --import http://ftp.sjtu.edu.cn/centos/5/os/i386/RPM-GPG-KEY-CentOS-5 运行YUM，测试 yum install httpd
