You can definitely install enough drivers so that both bare-metal and
virtual will boot. But what you cannot do is prevent the pci bus from
changing - the bare-metal boot WILL see different hardware than the
virtual boot, and windows is picky enough that it WILL require
re-registration every time the hardware changes that drastically.
There's no way around it.
Ok then. I was going toward mounting the w8 as loop device inside a
raw image, but I understand it will break the bare-metal boot. So
let's go with two w8 (or one VM only and no physical w8).
Thank you for your vise advices.