Chapter 15. Changing a subscription service To manage the subscriptions, you can register a RHEL system with either Red Hat Subscription Management Server or Red Hat Satellite Server. If required, you can change the subscription service at a later point. To change the subscription service under which you are registered, unregister the system from the current service and then register it with a new service. To receive the system updates, register your system with either of the management servers. This section contains information about how to unregister your RHEL system from the Red Hat Subscription Management Server and Red Hat Satellite Server. Prerequisites You have registered your system with any one of the following: Red Hat Subscription Management Server Red Hat Satellite Server version 6.11 To receive the system updates, register your system with either of the management servers. 15.1. Unregistering from Subscription Management Server This section contains information about how to unregister a RHEL system from Red Hat Subscription Management Server, using a command line and the Subscription Manager user interface. 15.1.1. Unregistering using command line Use the unregister command to unregister a RHEL system from Red Hat Subscription Management Server. Procedure Run the unregister command as a root user, without any additional parameters. When prompted, provide a root password. The system is unregistered from the Subscription Management Server, and the status 'The system is currently not registered' is displayed with the Register button enabled. To continue uninterrupted services, re-register the system with either of the management services. If you do not register the system with a management service, you may fail to receive the system updates. For more information about registering a system, see Registering your system using the command line . Additional resources Using and Configuring Red Hat Subscription Manager 15.1.2. Unregistering using Subscription Manager user interface You can unregister a RHEL system from Red Hat Subscription Management Server by using Subscription Manager user interface. Procedure Log in to your system. From the top left-hand side of the window, click Activities . From the menu options, click the Show Applications icon. Click the Red Hat Subscription Manager icon, or enter Red Hat Subscription Manager in the search. Enter your administrator password in the Authentication Required dialog box. The Subscriptions window appears and displays the current status of Subscriptions, System Purpose, and installed products. Unregistered products display a red X. Authentication is required to perform privileged tasks on the system. Click the Unregister button. The system is unregistered from the Subscription Management Server, and the status 'The system is currently not registered' is displayed with the Register button enabled. To continue uninterrupted services, re-register the system with either of the management services. If you do not register the system with a management service, you may fail to receive the system updates. For more information about registering a system, see Registering your system using the Subscription Manager User Interface . Additional resources Using and Configuring Red Hat Subscription Manager 15.2. Unregistering from Satellite Server To unregister a Red Hat Enterprise Linux system from Satellite Server, remove the system from Satellite Server. For more information, see Removing a Host from Red Hat Satellite .

Commands:
subscription-manager unregister