Subscription Manager RHEL

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Check subscription-manager status, list and so on…

Subscription Manager list show:

1subscription-manager list

Check the available subscriptions

1subscription-manager list --available --all
2

Verify subscription-manager status

1subscription-manager status
2subscription-manager list --consumed

Unsubscribe to remove the subscription

1subscription-manager unsubscribe --all

Unregister command unregisters a machine, which strops its subscriptions and removes the machine form the entitlement service.

1subscription-manager unregister

Error message when yum install / dnf install

I’ve got an error messege when trying to run yum or dnf command:

“This system is not registered with an entitlement server. You can use subscription-manager to register”

This issue can be shown after subscription-manager unregistering, to fix this isse deactiveate subscription-managerin config file:

1sudo vim /etc/yum/pluginconf.d/subscription- manager.conf
2
3# change the value to 0
4enabled=0 (if was 1)

After changing run:

1yum clean all

You should be able to run yum / dnf properly.