9114B and HP-41 HP75C

[rprosperi]

Just to add a tiny note of clarification to Dave's thorough reply: the USB connected floppy drive will not be capable of reading the LIF media, they can't implement the drive settings needed.

If you can, locate an older 720KB FDD, and install it in the Linux box to give it a try, it may be able to use that, depending on the age of the controller (but probably not); this is usually best with old (ISA vintage) machines as they have the legacy controller support needed to do that.