I think Stephane wants to *create* boxes using VirtualBox ( currenly the
Virtualbox boxes are create with Qemu then converted to the VirtualBox
VirtualBox is non-DFSG free. It relies the non free compiler OpenWatom
to buildthe bios. This is why it is not used to create the Boxes, as we
want to work with a free toolchain. You can look up the details on the
ITP buck report for openwatcom.
If anybody has contact at SAP to ask them how to reconsider the license
of the openwatcom compilers I am all hears (it's rather an hobbyist