Hi, Matthijs Kooijman wrote: > it seems isohybrid can include a small FAT filesystem with the > bootloader files. [...] > https://www.syslinux.org/wiki/index.php?title=Isohybrid#UEFI
This describes the equipment of debian-live and debian-cd (DVD-*, BD-*, netinst) ISOs. See e.g. debian-live-9.5.0-i386-xfce.iso and its MBR partition table. Debian and nearly all others use GRUB 2 for their EFI capable ISOs. See Knoppix 8.[12] for examples of SYSLINUX EFI in ISOs. SYSLINUX EFI stuff is known not to boot from CD, DVD, or BD, but only from HDD, SSD, and alike. Have a nice day :) Thomas