Hi, Robert Spiteri wrote: > I managed to solve the issue by adding the following parameter: > --bootloaders "grub-pc grub-efi"
I wasn't aware that Debian Live can be built with GRUB for BIOS. ------------------------------------------------------------------------ To possibly bystanding developers: I looked up the xorrisofs options for the GRUB equivalent of isohybrid: https://sources.debian.org/src/live-build/1:20240810/scripts/build/binary_iso/?#L78 elif [ "${LB_BOOTLOADER_BIOS}" = "grub-pc" ] then XORRISO_OPTIONS="${XORRISO_OPTIONS} --grub2-boot-info --grub2-mbr /usr/lib/grub/i386-pc/boot_hybrid.img" XORRISO_OPTIONS="${XORRISO_OPTIONS} -efi-boot-part --efi-boot-image" It would be better understandable if the EFI options were moved down to the handling of the EFI boot image: https://sources.debian.org/src/live-build/1:20240810/scripts/build/binary_iso/?#L160 grub-efi) if [ -e binary/boot/grub/efi.img ]; then XORRISO_OPTIONS="${XORRISO_OPTIONS} -e boot/grub/efi.img -no-emul-boot" XORRISO_OPTIONS="${XORRISO_OPTIONS} -isohybrid-gpt-basdat -isohybrid-apm-hfsplus" Line 163 would become something like if [ "${LB_BOOTLOADER_BIOS}" = "grub-pc" ] then XORRISO_OPTIONS="${XORRISO_OPTIONS} -efi-boot-part --efi-boot-image" else XORRISO_OPTIONS="${XORRISO_OPTIONS} -isohybrid-gpt-basdat -isohybrid-apm-hfsplus" fi The result is supposed to be the same as with the current somewhat self-contradicting set of options in case of "grub-pc": -efi-boot-part --efi-boot-image ... -isohybrid-gpt-basdat -isohybrid-apm-hfsplus Options -isohybrid-gpt-basdat and -isohybrid-apm-hfsplus have no effect, if not options -isohybrid-mbr or -part_like_isohybrid are given, which they should not be if GRUB BIOS equipment is used. Further i think that -isohybrid-apm-hfsplus should be removed, unless a HFS+ filesystem image is given by -e, as Fedora once did in its ISO for getting a third boot image for pre-EFI Macs. ("Ceterum censeo Carthaginem esse delendam.", Cato) ------------------------------------------------------------------------ Have a nice day :) Thomas
