Running leapp upgrade on Content Hosts registered with Red Hat Satellite 6 fails with Message: Unable to use yum successfully

Issue

• Upgrading RHEL-7.9 Content Hosts registered with Red Hat Satellite 6 to RHEL-8.2 using leapp upgrade fails with the below error.

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                             ERRORS                                                    
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  2021-02-03 15:50:55.193514 [ERROR] Actor: target_userspace_creator
  Message: Unable to use yum successfully
  Summary:
      Details: Command ['systemd-nspawn', '--register=no', '--quiet', '-D', '/var/lib/leapp/scratch/mounts/root_/system_overlay', '--bind=/etc/hosts:/etc/hosts', '--                setenv=LEAPP_NO_RHSM=0', '--setenv=LEAPP_EXPERIMENTAL=0', '--setenv=LEAPP_COMMON_TOOLS=:/etc/leapp/repos.d/system_upgrade/el7toel8/tools', '--setenv=LEAPP_COMMON_FILES=:/etc/leapp/repos.d/system_upgrade/el7toel8/files', '--setenv=LEAPP_UNSUPPORTED=0', '--setenv=LEAPP_EXECUTION_ID=4e1b074b-5cba-467c-aaa6-6f45ac9b2939', '--setenv=LEAPP_HOSTNAME=client1.example.com', 'yum', 'clean', 'all'] failed with exit code 1.
      Stderr: Host and machine ids are equal (189dd10294c44c12a412d75395b32192): refusing to link journals
              There are no enabled repos.
               Run "yum repolist all" to see the repos you have.
               To enable Red Hat Subscription Management repositories:
           subscription-manager repos --enable <repo>
               To enable custom repositories:
                   yum-config-manager --enable <repo>
  
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