关于免费解决RedHat6.5的:This system is not registered to Red Hat Subscription Managemen
redhat默认自带的yum源需要注册,才能更新,报错:ThissystemisnotregisteredtoRedHatSubscriptionManagement.Youcanusesubscription-managertoregister.可替换为centos对应的源。操作如下:1.检查是否安装yum包。查看RHEL是否安装了yum,若是安装了,那么又有哪些yum包:rpm-qa|grep