# Linux – Old Technologies About Floppy

assemblyfloppyiso-imagelinuxoperating systems

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?

If dd and other raw read utilties don't work, it's highly likely that the disk sectors are bad - in which case no method of reading (BIOS interrupts or otherwise) will work.
You could try the "noerror" option with dd to read the disk, but you'll only get partial data if read errors occur.