Install dmktools by entering the following commands in the terminal:
sudo apt update sudo apt install dmktools
Description:
tools for manipulating floppy disk images in the dmk format
Emulators such as OpenMSX attempt to emulate a real machine as best as possible. Some copy protection schemes rely on unformatted or bad sectors on floppy disks. The dmk format allows disk images to contain such unusual configurations. This package contains tools for generating and manipulating dmk image files.
Homepage: https://openmsx.org
Version: 0.14.0-2
Section: universe/otherosfs