Plugins » Katello

Registering with subscription manager may fail when a puppet checkin has previously created an operating system with the 'release name' set and we did not set the release name ourselves when determining the OS in Katello. Since all of the other attributes on the OS will match, a validation error is raised.

https://community.theforeman.org/t/validation-failed-name-operating-system-version-already-exists-title-has-already-been-taken-while-trying-to-register-physical-server/15921