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Re: xorriso and EFI boot images


From: Vladimir 'φ-coder/phcoder' Serbinenko
Subject: Re: xorriso and EFI boot images
Date: Sat, 24 Apr 2010 21:30:33 +0200
User-agent: Mozilla-Thunderbird 2.0.0.22 (X11/20091109)

> The description is very similar to what i
> implemented as --efi-boot.
> But -no-emul-boot is implied by --efi-boot and
> we are not in sync with the size of sectors:
> The web page talks of 2048 where i use 512.
>
> As far as El Torito 1.0 is concerned, the case is
> clear: Figure 5 - Section Entry talks of
> "virtual/emulated sectors". Paragraph 1.5 defines
> a Virtual Sector as [0x]200 bytes. A CD sector is
> [0x]800.
> But is EFI following this convention ?
>
>
> Vladimir ? 512 or 2048 ?
>
>  =20
I suppose it's 512. At least how it is now it works.
> Since -eltorito-alt-boot is part of original
> mkisofs i will use the same option for my
> emulation.
> It will be implicit with --efi-boot.
>
> I will have to ponder about implementing
> option -e .
> Anybody has a man page where it is described ?
>
>
>  =20
which probably just is "set platform-id to 0xef"



--=20
Regards
Vladimir '=CF=86-coder/phcoder' Serbinenko


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