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VMM cannot find the device or this device is not valid for a boot device

VMM cannot find the device or this device is not valid for a boot device

So you create a new Generation 2 (Gen2) virtual machine and install either Windows Server 2012 or 2012R2, you customise it and then you convert it in to a template in SCVMM.

All is normal.

You go to deploy that template from the library and it fails with the following:

[error]VMM cannot find the device or this device is not valid for a boot device [/error]

Very odd but an easy fix with a little PowerShell

Set-SCVMTemplate -Template "Template Name" -FirstBootDevice "SCSI,0,0"

Now when you deploy the template this time it succeeds with out error.

For a good run down on the new Generation 2 (Gen2) VMs and some background to this issue have a look at this Microsoft Blog article.

 

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