Hi, Rick Thomas wrote: > I notice that the webpage at > http://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmw > are/10.3.0+nonfree/amd64/iso-cd/ > mentions a mac image as if it *should* be there, but it's not in the list of > files.
As that text says, the "mac" ISOs do/did not contain anything extra but rather lack/lacked of UEFI boot entry points and of any UEFI boot software. Some MAC firmwares are said to take offense from UEFI bootable ISOs. Simply try whether yours is among them. If any mentioning of "Debian" appears, then your machine needs no "mac" ISO. If the Mac does not recognize the medium with the Debian "firmware" ISO, then you could try whether https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-mac-10.3.0-amd64-netinst.iso at least gets to some "Debian" screen. If so, then next step would to convert http://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/10.3.0+nonfree/amd64/iso-cd/firmware-10.3.0-amd64-netinst.iso into a "mac" variant. The UEFI boot entry points of Debian amd64 ISOs are: - For USB stick a partition of type 0xef in an MBR partition table The partition table entry can be deleted on USB stick by a partition editor. (Unless the partition editor problems of Jon Magee appear ...) - For CD/DVD an El Torito catalog entry. We could try questionable surgery on byte level, or you could repack the ISO according to the example in https://wiki.debian.org/RepackBootableISO#Determine_those_options_which_need_to_be_adapted_on_amd64_or_i386 but with the mount point of firmware-10.3.0-amd64-netinst.iso as content of variable new_files: orig_iso="$HOME"/firmware-10.3.0-amd64-netinst.iso sudo mkdir /mnt/iso sudo mount "$orig_iso" /mnt/iso new_files=/mnt/iso new_iso="$HOME"/firmware-mac-10.3.0-amd64-netinst.iso and without the xorriso options which create the UEFI boot entry points: -eltorito-alt-boot \ -e boot/grub/efi.img \ -no-emul-boot -isohybrid-gpt-basdat -isohybrid-apm-hfsplus \ Have a nice day :) Thomas
