The software described in this documentation is either no longer supported or is in extended support.
Oracle recommends that you upgrade to a current supported release.
Before you can register any systems with Spacewalk, you must have created an activation key for use with client systems, as described in Chapter 3, Creating Activation Keys. Oracle recommends using an activation key that is specific to the Oracle Linux release and system architecture rather than a default activation key.
Spacewalk registration is usually performed by Spacewalk's provisioning service. For existing or manually installed systems, you can alternatively use the rhnreg_ks command to register the system with Spacewalk.
Do not register a Spacewalk server or client with ULN. If you register a system with a Spacewalk server without first unregistering the system from ULN, it will break yum on the system. You can register a Spacewalk server as a client of itself to receive updates.