I didn't see you used the cd rom scsi. HFS standard is the format it must be.

Like mentioned a third party format tool or patched apple needs to be used. A disk made in OS 9 is not bootable in 8.6 or less. I backed up all my older systems on a Mac OS 9 cd backup and when put into an OS 8.6 or less computer it's says can only be read by OS 9.