Procedure 9.3. Subscribing to Required Channels using RHN Classic

1. Register

   If the machine has not already been registered with Red Hat Network, run the rhn_register command as root to register it. To complete registration successfully you will need to supply your Red Hat Network Username and Password. Follow the prompts displayed by rhn_register to complete registration of the system.

   # rhn_register

2. Subscribe to channels

   You must subscribe the system to the required channels using either the web interface to Red Hat Network or the command line rhn-channel command.

   • Using the Web Interface to Red Hat Network

     To add a channel subscription to a system from the web interface:
     1. Log on to Red Hat Network (http://rhn.redhat.com).
     2. Move the mouse cursor over the Subscriptions link at the top of the screen, and then click the Registered Systems link in the menu that appears.
     3. Select the system to which you are adding channels from the list presented on the screen, by clicking the name of the system.
     4. Click Alter Channel Subscriptions in the Subscribed Channels section of the screen.
     5. Select the channels to be added from the list presented on the screen. To use the virtualization host in a Red Hat Enterprise Virtualization environment you must select:

        • Red Hat Enterprise Linux Server (v. 6 for 64-bit x86_64); and
        • Red Hat Enterprise Virt Management Agent (v 6 x86_64).
     6. Click the Change Subscription button to finalize the change.

   • Using the rhn-channel command

     Run the rhn-channel command to subscribe the virtualization host to each of the required channels. The commands that need to be run are:

     # rhn-channel --add --channel=rhel-x86_64-server-6
     # rhn-channel --add --channel=rhel-x86_64-rhev-mgmt-agent-6

     Important

     If you are not the administrator for the machine as defined in Red Hat Network, or the machine is not registered to Red Hat Network, then use of the rhn-channel command will result in an error:

     Error communicating with server. The message was:Error Class Code: 37
     Error Class Info: You are not allowed to perform administrative tasks on this system.
     Explanation:
          An error has occurred while processing your request. If this problem
          persists please enter a bug report at bugzilla.redhat.com.
          If you choose to submit the bug report, please be sure to include
          details of what you were trying to do when this error occurred and
          details on how to reproduce this problem.

     If you encounter this error when using rhn-channel then to add the channel to the system you must use the web user interface instead.