With original packages, I first got this as an output when I used -T raw,tim011 (using my diskdefs file):
cpmls: unknown format ibm-3740 After not being able to figure this one out, I have added that definition to my diskdefs file (from original cpmtoold diskdefs), but calling cpmls -T raw,tim011 demo.img still produced garbage. Then, I compiled cpmtools from souce with libdsk support (still using libdsk from repository), and got garbage again. I will try to compile libdsk myself, but not now, I am too sleepy :) Thank you all for helping in this obscure retro-computing puzzle...