Re: GRUB2 (packaged with Ubuntu 12.10) won't boot OS X

[Andrey Borzenkov]

В Thu, 8 Nov 2012 12:30:49 +0200
Alex Kanavin <address@hidden> пишет:

> 2012/11/8 Andrey Borzenkov <address@hidden>:
> > Good. So what happens if from this command line you execute
> >
> > chainloader (hd0,gpt2)/System/Library/CoreServices/boot.efi
> > boot
> >
> > ? You can also use TAB completion to speed filesystem traversal.
> 
> I get "unknown error":
> 
> http://sensi.org/~ak/tmp/12110008.jpg
>

Well ... it apparently loads image and calls into EFI which does not
like it

 if (status != GRUB_EFI_SUCCESS)
    {
      if (exit_data)
...
      else
        grub_error (GRUB_ERR_BAD_OS, "unknown error");
    }

I guess at this point it may be better answered on grub-devel.