App layering | Importing an OS Layer on ELM on Azure we have the following error after about 20 minutes: The Compositing Engine failed to initialize after '00:20:00'.

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Article ID: CTX695314

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Updated On:

Description

After launching the ImportOSLayer ps script, the vm reboots but, after 20 minutes, on the ELM, we found the generic error "The Compositing Engine failed to initialize after '00:20:00'."

Cause

AL currently doesn't support NVMe controllers in Azure

Resolution

We should make sure the machine isn't configured with an NVMe disk controller for the boot disk. This will cause the CE to fail to boot.
 

It will be supported in App Layering in the next release, which is after 2507

Issue/Introduction

After launching the ImportOSLayer ps script, the VM reboots but after 20 minutes, on the ELM, we found the generic error "The Compositing Engine failed to initialize after '00:20:00'."