both official (and checked out the non-official :D) would boot in
UEFI-mode when I set an exclusive GPT-header for their images.
I wasn't very informed that the debian-mac*iso is made more for specific
mac models that came out in 2008-2009. I didn't use any of the
debian-mac iso images to re-surface the GPT-header, because those images
do not have a partition I can try to extract an EFI app...
someone wrote to me on another debian ml, that Ubuntu is started making
their ISO images with GPT headers. I can confirm this with basically
fdisk -l ./ubuntu-image.iso... and it says GPT... I believe it was 20.04
or 20.10, -- the first one I am noticing as well -- all their other
iso's are MBR...
Perhaps it's time for debian to start looking at the same.. because
there are times when the same problem occurs on PCs, that the "grub-pc"
is getting attempted for install CSM/BIOS boot-ups, and the
debian-installer sometimes gets confused for particular hardware...
^ having a GPT-header for the installer, might force UEFI detection
better for debian's support on other UEFI-makes beyond just the mactels
imho -- and from experience I have had to disable CSM/BIOS completely
after noticing that Debian is requesting to install the wrong grub
version for UEFI.
[ debian-installer wants to install on GPT, but then later installs
grub-pc instead of grub-efi -- this problem also has been happening
similarly with other distributions as well -- so there must be some
cause for this ]
^ this happens on both Mactels and PCs... abd also regardless of how
broken Apple UEFI hardware can really be.
so maybe there is a better deal for GPT-header disks as installers to
work more correctly..
just a food for thought
thanks
On 2021-10-24 2:20 p.m., Nicholas D Steeves wrote:
"Andrew M.A. Cater" <amaca...@einval.com> writes:
As mentioned on debian-user: the debian-11.1.0-amd64-netinst.iso or the
debian-11.1.0-amd-DVD-1.iso are the appropriate ones to use.
The debian-mac images are for a couple of specific models from 2008/2009
which had problems recognising El Torito images.
Oh yeah! I remember having to ask about this for a 2014 installation I
did on a 2012 MBP. Has it not been documented yet?
Seems like the website and installation guide could benefit from bug
reports requesting documentation of this fact. I believe it's worth the
effort, because recent macOS versions don't work well with older Apple
hardware.
Regards,
Nicholas
