Adding an additional 3.5 host on a system that was initially deployed with HE from 3.4 fails with error 'Setup validation: cannot marshal None unless allow_none is enabled'

Solution Verified - Updated -

Issue

If your RHEV environment was upgraded from RHEV 3.4 hosted engine (HE) to RHEV 3.5 HE, re-installing a HE host as version 7 and re-adding it to your environment fails.

Setup validation: cannot marshal None unless allow_none is enabled

Environment

Red Hat Enterprise Virtualization (RHEV) 3.5

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In
Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.