Red Hat Migrating from RHN to RHSM

Issue/Symptom/Question

We received email from Red Hat about migrating from Red Hat Network Classic (RHN) to Red Hat Subscription Management (RHSM). How do we do this?

Applies To

Linux servers

root access

Resolution/Fix/Answer

Red Hat has changed how users access updates/patches for their servers.

  • Log into Linux server as root
  • At command prompt type:
    • subscription-manager register --auto-attach
      • You will be prompted for your Red Hat Network username and password 
  • If you receive an error stating it is already subscripted to RHN do the following:
    • subscription-manager unregister
    • subscription-manager clean
    • subscription-manager register --auto-attach


If you have further issues, please log a Service Desk Ticket and reference this article.