In short - It does not (support provisioning of NIX environments).
The boot environment is WinPE - which isn't exactly great for poking NIX-based file systems.
Now - you *CAN* take an image & restore that image using our default imaging tool (as that's sector-based & will be able to snatch anything on a HD), but that's not really "provisioning per se" - since you usually want to "poke at" & "fiddle with" stuff in the file system to properly manage / provision a box anyway.
I had a similar conversation reasonably recently, which you can look up here -- How to expand Linux partition in OS Provisioning -- (found the darn thing at last).
Most NIX-houses tend to use Kickstart & similar to provision their estate already, so it's not a very common request / ask on us (we "had" something eons ago that'd allow functioning in a Linux environment, but it was used very rarely). You could voice your interest here -- Enhancement Requests -- in terms of having such a feature added back in.
Does that help?