Entitlement Errors Encountered After RHEL Downgrade

Issue

• We are trying to down grade to RHEL 6.2. During the downgrade process we ran into the following entitlement errors:

  The system with UUID xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx has been unregistered
  The system has been registered with id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
  [root@myserver ~]# yum clean all
  Loaded plugins: product-id, rhnplugin, subscription-manager
  Updating certificate-based repositories.
  Cleaning repos:
  Cleaning up Everything
  [root@myserver ~]# yum repolist
  Loaded plugins: product-id, rhnplugin, subscription-manager
  Updating certificate-based repositories.
  This system is not registered with RHN.
  RHN Satellite or RHN Classic support will be disabled.
  repolist: 0
  [root@myserver ~]# subscription-manager repos --list
  The system is not entitled to use any repositories.