redhat6.5 空系统下安装yum及 更新链接为centos

1.删除redhat原有的yum

# rpm -aq|grep yum|xargs rpm -e --nodeps

2. 下载yum安装源

#wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-69.el6.centos.noarch.rpm

#wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm

#wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-30.el6.noarch.rpm

#wget http://mirrors.163.com/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm

3.进行安装yum

#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-3.2.29-69.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-30.el6.noarch.rpm

4.更新repo文件

cp /etc/yum.repos.d/rhel-source.repo /etc/yum.repos.d/rhel-source.repo.bak

vi /etc/yum.repos.d/rhel-source.repo

内容为：

[base]

name=CentOS-$releasever - Base

baseurl=http://mirrors.163.com/centos/6/os/$basearch/

gpgcheck=1

gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6

#released updates

[updates]

name=CentOS-$releasever - Updates

baseurl=http://mirrors.163.com/centos/6/updates/$basearch/

gpgcheck=1

gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6

#packages used/produced in the build but not released

#[addons]

#name=CentOS-$releasever - Addons

#baseurl=http://mirrors.163.com/centos/$releasever/addons/$basearch/

#gpgcheck=1

#gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful

[extras]

name=CentOS-$releasever - Extras

baseurl=http://mirrors.163.com/centos/6/extras/$basearch/

gpgcheck=1

gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages

[centosplus]

name=CentOS-$releasever - Plus

baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/

gpgcheck=1

enabled=0

5.更新系统

# yum update -y