Hi, David Christensen wrote: > http://cdimage.debian.org/debian-cd/current/i386/iso-cd/debian-8.7.1-i386-xfce-CD-1.iso
Background info: This is an isohybrid made by xorriso, equivalent to a run of isohybrid --uefi There is a probably useless Apple Partition Map pointing to the UEFI System Partition. The whole UEFI aspect is to be ignored by a BIOS from 2003, i suppose. The block address pointer from MBR to isolinux.bin looks ok. Confirmed by xorriso analysis and by newer BIOSes which boot. > isolinux.bin missing or corrupt Somehow the MBR code, when run on the old BIOS, seems not to like isolinux.bin and thus refuses to hop on it. If i get http://git.zytor.com/syslinux/syslinux.git/tree/mbr/isohdpfx.S#n201 right, then the error message is emitted if reading succeeds but does not yield the expected values in bytes 64 to 67, which serve as magic number to identify an isohybrid-ready El Torito boot image. (I could need a reference document for the assembler language in isohdpfx.S. Does anybody know a good one ?) Have a nice day :) Thomas
