I have a floppy disk with an unknown FS-(FileSystem). I want to make a copy from it but I can't because both Windows and Linux seem to be unable to read from it.
I tried many of the most popular apps to make image files (for example isomeric, winimage, …) but they are all unable to make an image.
On Linux I tried the
dd command to copy it but it seems that not even
dd is able to make a copy. I get many errors while reading from the disk, I looked them up and I found that
dd was unable to read from it because of a bad sector – but when I test this floppy on the HITACHI system it works fine and I don't get any error.
The question is: how can I make a copy from this type of floppy? I've heard I can use a BIOS interrupt for this kind of things?