Description of problem: Red Hat Enterprise Linux ComputeNode release 7.6 (Maipo) OS also recognized as RedHat 7.6 Operating System. It should create a new operating system for RHEL ComputeNode 7.6. Version-Release number of selected component (if applicable): Satellite 6.4 Server Red Hat Enterprise Linux ComputeNode release 7.6 (Maipo) How reproducible: Yes Steps to Reproduce: 1. Remove "RedHat 7.6" Operating system from "Hosts > Operating Systems". 2. Then Run "puppet agent -tv" on the "Red Hat Enterprise Linux ComputeNode release 7.6 (Maipo" Host. 3. It attaches RedHat 7.6 to "Red Hat Enterprise Linux ComputeNode release 7.6 (Maipo" in spite of creating a new operating system for the RHEL Compute Node.