Hi, if nothing else helps:
What happens if you destroy the Apple Partition Map of the ISO before you burn it to the CD. cp debian-10.0.0-powerpc-NETINST-1.iso test.iso dd if=/dev/zero conv=notrunc bs=2048 count=16 of=test.iso ... burn test.iso with SAO ... This won't boot. But maybe it lures the Mac firmware into doing things with the drive which then confuse Linux. (Does Linux on powerpc have any special preference for HFS/HFS+ which Linux on other systems has not ?) ---------------------------------------------------------------------- Source studies: Do i get it right that cdrom-detect is a part of Debian's installation software ? If so, where is the shell function or program list-devices which is used in https://sources.debian.org/src/cdrom-detect/1.91/debian/cdrom-detect.postinst/ ? This shell script obviously emits the following messages: [timestamp] cdrom-detect: Devices: '/dev/sr0' [timestamp] cdrom-detect: CD-ROM mount failed: device=/dev/sr0 fstype=iso9660 [timestamp] cdrom-detect: CD-ROM mount failed: device=/dev/cdrom fstype=iso9660 [timestamp] cdrom-detect: CD-ROM mount failed; unmounting CD just to be sure The origin of these is obscure: [timestamp] (process:1560): mount: mounting /dev/sr0 on /cdrom faiked: No such device [timestamp] (process:1560): mount: mounting /dev/cdrom on /cdrom failed: No such device Whatever, it would be interesting to see what ls -l /dev/sr0 /dev/cdrom has to say at that moment. Further i do not understand why /dev/cdrom is tried but not listed in the "Devices:" line. The messages "(process:1560): mount:" seem not to come directly from mount(8), because if i do on Debian 10 or on Debian 8 mount -t iso9660 -o ro,exec /dev/sr7 /mnt/iso i get mount: special device /dev/sr7 does not exist rather than mount: mounting /dev/sr0 on /cdrom faiked: No such device So, not regarding the s/failed/faiked/ discrepancy, what kind of mount program issued that message ? Have a nice day :) Thomas