Re: Multiboot2 header

[Yoshinori K. Okuji]

On Tuesday 04 November 2008 21:36:27 Robert Millan wrote:
> The Multiboot2 draft says a Multiboot2 header must be included in the OS
> image.  However, our code assumes (in code itself and in comments) that for
> MB2 this is optional.
>
> As a consequence, if you feed GRUB's multiboot loader any ELF, it will
> attempt to load it.  I think this is very confusing for those developing
> a Multiboot _1_ OS.  If they happen to make a mistake and put the MB1
> header too high or unaligned, GRUB won't tell them about it but instead
> fail in a very confusing way.
>
> So I assume (I'd like to!) that the correct one is the draft, and it's the
> code that should be changed to reject executables that don't have either
> MB1 or MB2 headers?

Yes. The code is wrong.

Regards,
Okuji