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Jon Reeves
Asked: 2019-09-26 05:18:46 +0800 CST

How to respond to HyperV Stop-VM prompts in PowerShell script?

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I am writing a script to carry out maintenance on several virtual machines running on Hyper-V

As part of this, I need to stop the VMs but if there is any kind of problem with stopping them, I want to abort the process

Problem is, Stop-VM prompts for confirmation if it encounters any problems and there doesn't seem to be any way to automate a response (there are no switches to the cmdlet to control what happens in these cases, -confirm:$false doesn't work, -force is the opposite of what I want, and sending STDIN to the cmdlet gives an error as it expects to receive a virtual machine via the pipeline

As an example, if the integration services are unavailable you get prompted to force a shutdown, which I would want to answer No to:


> stop-vm testvm01

    Confirm

    Hyper-V can't shut down virtual machine "testvm01" because the Shutdown integration service is unavailable. You can turn off the virtual machine by selecting [Y]es, but this is similar to pulling the power on a physical machine. To avoid potential data loss, select

    [N]o, then pause or save the virtual machine. Do you want to turn off the virtual machine?

    [Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"):

How can I script a response to this prompt?

powershell

0 Answers