Chapter 5. Registering a System and Managing Subscriptions

Effective asset management requires a mechanism to handle the software inventory — both the type of products and the number of systems that the software is installed on. The subscription service provides that mechanism and gives transparency into both global allocations of subscriptions for an entire organization and the specific subscriptions assigned to a single system.
Red Hat Subscription Manager works with yum to unite content delivery with subscription management. The Red Hat Subscription Manager handles only the subscription-system associations. yum or other package management tools handle the actual content delivery. Chapter 6, Yum describes how to use yum.

5.1. Using Red Hat Subscription Manager Tools

Both registration and subscriptions are managed on the local system through GUI and CLI tools called Red Hat Subscription Manager.

Note

The Red Hat Subscription Manager tools are always run as root because of the nature of the changes to the system. However, Red Hat Subscription Manager connects to the subscription service as a user account for the subscription service.

5.1.1. Launching the Red Hat Subscription Manager GUI

Red Hat Subscription Manager is listed as one of the administrative tools in the System > Administration menu in the top management bar.
Red Hat Subscription Manager Menu Option

Figure 5.1. Red Hat Subscription Manager Menu Option

Alternatively, the Red Hat Subscription Manager GUI can be opened from the command line with a single command:
~]# subscription-manager-gui

5.1.2. Running the subscription-manager Command-Line Tool

Any of the operations that can be performed through the Red Hat Subscription Manager UI can also be performed by running the subscription-manager tool. This tool has the following format:
~]# subscription-manager command [options]
Each command has its own set of options that are used with it. The subscription-manager help and manpage have more information.

Table 5.1. Common subscription-manager Subcommands

Subcommand Description
register Registers or identifies a new system to the subscription service.
unregister Unregisters a machine, which strips its subscriptions and removes the machine from the subscription service.
attach Attaches a specific subscription to the machine.
redeem Auto-attaches a machine to a pre-specified subscription that was purchased from a vendor, based on its hardware and BIOS information.
remove Removes a specific subscription or all subscriptions from the machine.
list Lists all of the subscriptions that are compatible with a machine, either subscriptions that are actually attached to the machine or unused subscriptions that are available to the machine.