Chapter 7. Registering the System and Managing Subscriptions
The subscription service provides a mechanism to handle Red Hat software inventory and allows you to install additional software or update already installed programs to newer versions using the yum package manager. In Red Hat Enterprise Linux 7 the recommended way to register your system and attach subscriptions is to use Red Hat Subscription Management.
It is also possible to register the system and attach subscriptions after installation during the initial setup process. For detailed information about the initial setup see the Initial Setup chapter in the Installation Guide for Red Hat Enterprise Linux 7. Note that the Initial Setup application is only available on systems installed with the X Window System at the time of installation.
7.1. Registering the System and Attaching Subscriptions
Complete the following steps to register your system and attach one or more subscriptions using Red Hat Subscription Management. Note that all subscription-manager commands are supposed to be run as root.
Run the following command to register your system. You will be prompted to enter your user name and password. Note that the user name and password are the same as your login credentials for Red Hat Customer Portal.
subscription-manager registerDetermine the pool ID of a subscription that you require. To do so, type the following at a shell prompt to display a list of all subscriptions that are available for your system:
subscription-manager list --availableFor each available subscription, this command displays its name, unique identifier, expiration date, and other details related to your subscription. To list subscriptions for all architectures, add the
--alloption. The pool ID is listed on a line beginning withPool ID.Attach the appropriate subscription to your system by entering a command as follows:
subscription-manager attach --pool=pool_id
Replace pool_id with the pool ID you determined in the previous step.
To verify the list of subscriptions your system has currently attached, at any time, run:
subscription-manager list --consumed
For more details on how to register your system using Red Hat Subscription Management and associate it with subscriptions, see the designated solution article. For comprehensive information about subscriptions, see the Red Hat Subscription Management collection of guides.
7.2. Managing Software Repositories
When a system is subscribed to the Red Hat Content Delivery Network, a repository file is created in the /etc/yum.repos.d/ directory. To verify that, use yum to list all enabled repositories:
yum repolistRed Hat Subscription Management also allows you to manually enable or disable software repositories provided by Red Hat. To list all available repositories, use the following command:
subscription-manager repos --listThe repository names depend on the specific version of Red Hat Enterprise Linux you are using and are in the following format:
rhel-version-variant-rpms rhel-version-variant-debug-rpms rhel-version-variant-source-rpms
Where version is the Red Hat Enterprise Linux system version (6 or 7), and variant is the Red Hat Enterprise Linux system variant (server or workstation), for example:
rhel-7-server-rpms rhel-7-server-debug-rpms rhel-7-server-source-rpms
To enable a repository, enter a command as follows:
subscription-manager repos --enable repositoryReplace repository with the name of the repository to enable.
Similarly, to disable a repository, use the following command:
subscription-manager repos --disable repositorySection 9.5, “Configuring Yum and Yum Repositories” provides detailed information about managing software repositories using yum.
If you want to update the repositories automatically, you can use the yum-cron service. For more information, see Section 9.7, “Automatically Refreshing Package Database and Downloading Updates with Yum-cron”.
7.3. Removing Subscriptions
To remove a particular subscription, complete the following steps.
Determine the serial number of the subscription you want to remove by listing information about already attached subscriptions:
subscription-manager list --consumedThe serial number is the number listed as
serial. For instance,744993814251016831in the example below:SKU: ES0113909 Contract: 01234567 Account: 1234567 Serial: 744993814251016831 Pool ID: 8a85f9894bba16dc014bccdd905a5e23 Active: False Quantity Used: 1 Service Level: SELF-SUPPORT Service Type: L1-L3 Status Details: Subscription Type: Standard Starts: 02/27/2015 Ends: 02/27/2016 System Type: Virtual
Enter a command as follows to remove the selected subscription:
subscription-manager remove --serial=serial_number
Replace serial_number with the serial number you determined in the previous step.
To remove all subscriptions attached to the system, run the following command:
subscription-manager remove --all7.4. Additional Resources
For more information on how to register your system using Red Hat Subscription Management and associate it with subscriptions, see the resources listed below.
Installed Documentation
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subscription-manager(8) — the manual page for Red Hat Subscription Management provides a complete list of supported options and commands.
Related Books
- Red Hat Subscription Management collection of guides — These guides contain detailed information how to use Red Hat Subscription Management.
- Installation Guide — see the Initial Setup chapter for detailed information on how to register during the initial setup process.
See Also
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Chapter 6, Gaining Privileges documents how to gain administrative privileges by using the
suandsudocommands. - Chapter 9, Yum provides information about using the yum packages manager to install and update software.
