Check the information in this thread:

It has the information on how to use 'Run Once' to do the initial run.
Notably, don't forget to add the sysprep floppy!

Best regards,


On Thu, 12 Jan 2017 11:14:30 +0000
Denis Pithon <> wrote:

> Hello oVirt users,
> We currently run about 300 VMs with oVirt, both Linux and Windows servers.
> Cloud init works great for Linux VMs and we would like to do the same for
> Windows. We have a 2012r2 sysprep template but we do not manage to
> configure the initial run such that the new Windows VM boot *and join our
> AD domain* thereafter. Does someone have any clues/informations about this
> kind of operation ? How to specify unattend file in the 'New Virtual
> Machine' ? What kind of data (and format) is required in the 'sysprep'
> field ?
> Best whishes to everyone!
> Denis
> PS: We run oVirt Engine 4.0.5

Tomáš Golembiovský <>
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