If you use Auto Deploy to add stateful ESXi hosts to a cluster that you manage by using an image, all hosts must have the same software specification.
When an Auto Deploy rule is created and the target cluster is managed by an image, a Preboot Execution Environment (PXE) image is created based on the image specification of the cluster. The generated PXE image is cached and is not automatically updated. As a result, if you modify the image specification in the vSphere Lifecycle Manager, you must update the PXE image manually.
For information how to create a rule to add hosts to a cluster managed by an image, see Use Auto Deploy to Add a Host to a Cluster Managed by an Image from the vSphere Lifecycle Manager documentation.
Prerequisites
Procedure
Results
The PXE image is running the latest image specification.