Hi, while digging further in direction of Debian installation ISOs i came to these lines in /boot/grub/grub.cfg of debian-13.1.0-amd64-netinst.iso :
# Added as a workaround for #1110759 echo "Loading bootloader..." terminal_output gfxterm This is another bug number but also the hope that the problem is dealt with at least in debian-cd. Now i wonder why your debian-13.1.0-amd64-DVD-1.iso needed an extra echo "" in its /boot/grub/grub.cfg . Do you see the comment line and the echo line in the grub.cfg of the ISO image which you used ? Do you know the SHA256SUM of the original ISO after download but before packing it up again ? Why i riddle: Downloading https://cdimage.debian.org/debian-cd/13.1.0/amd64/iso-dvd/debian-13.1.0-amd64-DVD-1.iso yields an ISO with SHA256 matching the SHA256SUMS file: fd941eefaff97349e81f82090c0b32eef7b96518e1361666052e11f39b02711d I see in the ISO 9660 filesystem in file /boot/grub/grub.cfg at line 16 ff. the same workaround comment and echo command as in the netinst ISO. The next line is the only one with command "terminal_output" in the grub.cfg file. It does not look as if other GRUB files would be interpreted in the lines before. The grub.cfg file in the EFI partition /efi/debian/grub.cfg sources /boot/grub/x86_64-efi/grub.cfg in the ISO 9660 filesystem which sources /boot/grub/grub.cfg in the ISO 9660 filesystem. So no "terminal_output gfxterm" to see before the workaround lines. If an additional echo "" is indeed needed, then this should be reported to [email protected] Have a nice day :) Thomas

