Chapter 5. Registering virtual machines to use a host-based subscription

Register virtual machines with auto-attach so that they inherit a subscription from their hypervisor.

Prerequisites

  • Attach a host-based subscription to the virtual machine’s hypervisor.
  • Configure virt-who to query the virtual machine’s hypervisor.
  • Ensure that all hypervisors the virtual machine can migrate to have host-based subscriptions attached and report to virt-who, or limit the virtual machine’s migration to specific hypervisors.

Web UI procedure

  1. Log in to the Customer Portal at https://access.redhat.com.
  2. Navigate to Subscriptions > Systems and click the name of the virtual machine.
  3. Click the Subscriptions tab.
  4. Click Run Auto-Attach.

Repeat these steps for each virtual machine.

CLI procedure

  1. Register the virtual machine using the auto-attach option: 

    # subscription-manager register --auto-attach
  2. When prompted, enter your user name and password.

Repeat these steps for each virtual machine.

If the virtual machine has already been reported by virt-who, the virtual machine inherits a subscription from its hypervisor.

If the virtual machine has not been reported by virt who, the virtual machine receives a temporary subscription while Subscription Management waits for virt-who to provide information about which hypervisor the virtual machine is running on. After virt-who provides this information, the virtual machine inherits a subscription from its hypervisor.