Bug#771465: Please add UEFI boot files to i386 and amd64 netboot images
On Sun, 2015-09-13 at 12:36 +0200, Teemu Ikonen wrote:
> On Sun, Sep 13, 2015 at 12:11 PM, Ian Campbell <ijc@debian.org>
> wrote:
> > Do you mean mini.iso as in:
> > http://ftp.uk.debian.org/debian/dists/jessie/main/installer-amd64/c
> urrent/images/netboot/mini.iso
> > or something else?
>
> Hi Ian,
>
> Yes, that's the one, although I've tested with the i386 image.
>
> > I'm not actually 100% clear what you are asking for. Given the
> above
> > mini.iso I have in the ESP:
> >
> > $ isoinfo -x /boot/grub/efi.img -RJ -i mini.iso-sid > efi.img
> > $ mdir -i efi.img -/ -b
> > ::/efi/
> > ::/efi/boot/
> > ::/efi/boot/bootx64.efi
> >
> > and
> >
> > $ isoinfo -f -RJ -i mini.iso-sid
> >
> > shows lots of stuff in /boot/grub/x86_64-efi of the main image, all
> of
> > which I believe is sufficient to boot on a 64-bit EFI system.
> >
> > The i386 version of mini.iso instead has bootia32.efi in the ESP
> and
> > /boot/grub/i386-efi on the main ISO.
> >
> > So either this isn't working for you or the request you are making
> is
> > for something else in addition.
>
> The latest mini.iso netboot image is not booting on my Macbook2,1 but
> the official Debian 8.2 netinst image (315 MB) does.
>
> The USB-sticks I've managed to boot in this machine all have had the
> file efi/boot/bootia32.efi on the single partition they've had,
> either
> a vfat partition prepared by grub-install or a is9660 filesystem
> copied from the installer image. That's also the case with the 8.2
> netinst image:
>
> $ 7z l debian-8.2.0-i386-netinst.iso | grep bootia
> 2015-09-06 12:00:44 ..... 272384 272384
> efi/boot/bootia32.efi
>
> This file is not present in the netboot mini.iso.
It is present in the ESP (efi.img within the iso image), which is
pointed to be (AIUI) the El Torito headers in the ISO.
Perhaps there are some systems for which this is not sufficient?
> The EFI implementation on old intel Macbooks is probably broken in
> several ways, but to me it looks like the fix is easy, known, and
> takes all of 272384 bytes in the installation image. But you are
> right, the patch is not there yet.
The fact that it is easy to describe in prose what needs to happen does
not mean that it is actually easy to implement I'm afraid.
Ian.
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