RHEL6中
1、卸载自身yum
# rpm -aq|grep yum|xargs rpm -e --nodeps
2、下载centos6相关包
#wget http://mirrors.163.com/centos/6.0/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
#wget http://mirrors.163.com/centos/6.0/os/x86_64/Packages/yum-metadata-parser-1.1.2-14.1.el6.x86_64.rpm
#wget http://mirrors.163.com/centos/6.0/os/x86_64/Packages/yum-3.2.27-14.el6.centos.noarch.rpm
#wget http://mirrors.163.com/centos/6.0/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.26-11.el6.noarch.rpm

3、安装
# rpm -ivh python-iniparse-0.3.1-2.1.el6.noarch.rpm
# rpm -ivh yum-metadata-parser-1.1.2-14.1.el6.x86_64.rpm
# rpm -ivh yum-3.2.27-14.el6.centos.noarch.rpm  yum-plugin-fastestmirror-1.1.26-11.el6.noarch.rpm
4、复制centos6中的repo到RHEL6
centos6#scp /etc/yum.repos.d/CentOS-Base.repo  rhel6:/etc/yum.repos.d/CentOS-Base.repo
rhel6# vi  /etc/yum.repos.d/CentOS-Base.repo
编辑:
:%s/$releasever/6.0/
5、导入centos6的key
centos6#scp /media/CentOS/RPM-GPG-KEY-CentOS-6 rhel6:/tmp
rhel6#rpm --import /tmp/RPM-GPG-KEY-CentOS-6
6、使用
# yum clean all
# yum list
没有报错
作者 “学习linux”