Re: black screen on installer grub menu
OK. Thanks Nate for the steer. I didn't really understand why it's not
been fixed, but it's fixable:
Based on the bug report, some race condition, when solar flares excite
the ionisphere or something like that.
The reporter did some magic with [echo ""] to his grub files. I riffed
off of that:
sudo mount -o loop debian-13.1.0-amd64-DVD-1.iso /mnt
mkdir -p ~/Downloads/debian_iso_work
sudo rsync -aHAX /mnt/ ~/Downloads/debian_iso_work/
cd ~/Downloads/debian_iso_work/
ls -l boot/grub/grub.cfg
-r--r--r-- 1 root root 6115 Sep 6 05:29 boot/grub/grub.cfg
sudo vi boot/grub/grub.cfg
# add to top with empty line after
echo ""
:w!
# vi .disk/mkisofs based on https://wiki.debian.org/RepackBootableISO
The content of file /.disk/mkisofs looks discouraging until we decide
that we need no Jigdo files but only the complete ISO image. So we can
omit all options which begin by -jigdo together with their subsequent
arguments. Further we do not need the jigdo-related options
-checksum_algorithm_iso and -md5-list with their arguments.
# so, tweaked the command, like so:
xorriso -as mkisofs \
-r \
-V 'Debian 13.1.0 amd64 1' \
-o ~/debian-13.1.0-amd64-DVD-1.iso \
-J -joliet-long -cache-inodes \
-isohybrid-mbr /usr/lib/ISOLINUX/isohdpfx.bin \
-b isolinux/isolinux.bin \
-c isolinux/boot.cat \
-boot-load-size 4 \
-boot-info-table \
-no-emul-boot \
-eltorito-alt-boot \
-e boot/grub/efi.img \
-no-emul-boot \
-isohybrid-gpt-basdat \
-isohybrid-apm-hfsplus \
.
insert usb
umount /dev/sda1
sudo dd if=~/debian-13.1.0-amd64-DVD-1.iso of=/dev/sda bs=8M oflag=sync
status=progress
booted uefi and legacy, both worked.
Yay!? but weird that they've known about it, but just left it out there.
Maybe they rightfully consider this a grub bug, but still...
Thanks. Hopefully, 3 years from now when I see this again, I'll have
some recollection of it :).
Will
On 9/6/25 5:34 PM, Nate Bargmann wrote:
Hi Will.
Seems to be a UEFI issue on some devices with the later version of GRUB.
See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1051832
- Nate
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