are ahci-hd images the same as raw under bhyve

[Aryeh Friedman]

When I was playing with bhyve-grub a while ago I noticed there seemed to be
little difference between ahci-hd and "raw" (if no format it given besides
just naming a md file).  Is it safe to treat the two formats
interchangeably in bhyve (and bhyve-grub)?  Can I do this to the point of
mixing and matching them on instances created with both (i.e. boot with
ahci on a raw image and vice versa)?

-- 
Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org