Re: Bug#927892: grub-ieee1275-bin: Please add bootinfo.txt for sparc and sparc64

["Thomas Schmitt" <scdbackup@gmx.net>]

Hi,

Mark Cave-Ayland wrote:
> - In your second patch re-enable the -G/-B options but with -G set to
> cdboot.img:
>     add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-G cdboot.img -B ..."

Does this refer to
  From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
  Date: Thu, 25 Apr 2019 00:05:45 +0200
  https://lists.debian.org/debian-sparc/2019/04/msg00036.html
?


> Once this is done and the ISO image is generated, [...]
> - Next check the offset and size of /boot/grub/core.img embedded in
> sector 1 using dd and hexdump. As per Thomas' message you should find
> the offset in bytes of the start of /boot/grub/core.img at offset 552
> from the start of the .iso (64-bit big endian) and its size at offset
> 560 from the start of the .iso (32-bit big endian)

This would be put there by xorriso -as mkisofs option

  --grub2-sparc-core ...path.of.file.in.ISO.filesystem...

With genisoimage it would be necessary to insert the info by
post-processing. /usr/bin/isoinfo prints block addresses as first number
in its "[   NN NN]" column. Byte offset is block address * 2048.


Have a nice day :)

Thomas