message日志信息：
Oct 19 03:45:02 oracledb1 rhsmd: In order for Subscription Manager to provide your system with updates, your system must be registered with the Customer Portal. Please enter your Red Hat login to ensure your system is up-to-date. Oct 20 03:22:02 oracledb1 rhsmd: In order for Subscription Manager to provide your system with updates, your system must be registered with the Customer Portal. Please enter your Red Hat login to ensure your system is up-to-date. Oct 21 03:28:02 oracledb1 rhsmd: In order for Subscription Manager to provide your system with updates, your system must be registered with the Customer Portal. Please enter your Red Hat login to ensure your system is up-to-date. Oct 22 03:18:02 oracledb1 rhsmd: In order for Subscription Manager to provide your system with updates, your system must be registered with the Customer Portal. Please enter your Red Hat login to ensure your system is up-to-date.
卸载订阅软件包：
rpm -qa | grep subscrip | xargs -L1 rpm -e --nodeps
原文：http://www.cnblogs.com/abclife/p/4899914.html