I get a bootable disk when I transfer a CP/M system disk to a 1541 using Star Commander on a PC. Could that Amiga program be doing something fishy when transferring the disk image?
I did that before with this program, but that were disks for use on a c64. That worked OK. The transfer of the image to the 1541 takes a long time, about 2 hours. The 1541 makes a rattling noise at intervals. But eventually the program ends normal.
EDIT: I had to format the floppy first. After that, Easy1541 writes the image. This image works in the C128.