How to automatically install guest drivers inside a Windows VM

[Peter Crowther]

Are you installing on existing VMs or on new VMs as you create them? If the
latter, slipstream the drivers into the gold Windows image using DISM:
https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/add-and-remove-drivers-to-an-offline-windows-image?view=windows-11

Cheers,

Peter

On Mon, 25 Apr 2022, 00:28 Cameron Showalter, <cameronsplaze222 at gmail.com>
wrote:

> I'm trying to write an automatic way to install drivers inside guests, and
> I'm starting with Windows first. I'm trying to follow this guide here:
>
>
> https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/virtual_machine_management_guide/installing_guest_agents_and_drivers_windows
>
> So I install virtio-win to the host, and mount that as a cd-rom inside the
> Windows 10 VM. I then want to install ALL drivers and agents like so
> (Command Prompt as Admin, go to the drive letter the iso is mounted as
> before running this):
>
> start /wait msiexec /i "virtio-win-gt-x64.msi" /qn ADDLOCAL=ALL
> <wait a few minutes JUST TO BE SURE it finished>
> <restart VM>
>
> And from what I can tell, it works. I can go into device manager, and see
> drivers for virtio-balooning  / etc. The problem is in virt-manager, going
> to "View: Scale Displays: Auto-resize VM with window", and it's still
> greyed out. (Says Guest Agent is not available). Going to "View: Consoles",
> it says I have "Graphical Console Spice" selected. Any idea what I might be
> doing wrong?
>
> And, is this the right approach for automatic guest drivers? Mounting the
> iso, then use something like "virsh x-exec" to run that msiexec command
> above.
>
> Thanks!
> Cameron
>
>
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