How to format and duplicate floppies under Linux

Last modified on July 24, 2026 • 1 min read • 56 words
Formatting and duplication of floppy disks with Linux
How to format and duplicate floppies under Linux
Image by Michael Jeltsch

How to format:

  1. Put floppy in drive, do not mount it.
  2. fdformat /dev/fd0 OR: Use “System Tools -> Floppy Formatter " in RedHat 9

How to duplicate:

  1. Put source floppy into the floppy drive
  2. Mount it if it doesn’t automount.
  3. dd if=/dev/fd0 of=/tmp/floppy bs=1024 count=14404.
  4. Eject floppy, put destination floppy in
  5. dd if=/tmp/floppy of=/dev/fd0 bs=1024 count=1440