The right solution is to stop acting outside the specs and have the meat of the bootloader in a (possibly separate) partition. The term "embedding area" seems t

The right solution is to stop acting outside the specs and have the meat of the bootloader in a (possibly separate) partition. The term "embedding area" seems to be entirely made up by the GRUB developers -- I couldn't find a single reference to it outside GRUB-related mailing lists and blog posts. The bootloader is a single point of failure -- for it to rely on unspecified behaviour is absurd.