I'm trying to create DOS floppies in Linux - not bootable floppies, but virtualbox keeps telling me they are invalid images.

I have tried:

In Virtualbox I get the error:

I am sure I am missing a vital step here, but just can't see it! Anyone able to advise please? Ta.

If you mean how can you create an empty dos formatted image:-

dd if=/dev/zero of=dosfloppy bs=1K count=1440

should do it, I think, then:-

mkdosfs -F 12 dosfloppy

to check the image:-

mount -o loop -t msdos dosfloppy /mnt
df -h /mnt
umount /mnt


And there you have a blank formatted floppy image.
If you need anything on it before using VB, add it while loop mounted.

######
How can I make a DOS floppy image in Linux?
I'm trying to create DOS floppies in Linux - not bootable floppies, but virtualbox keeps telling me they are invalid images.
######

1 members found this post helpful.

Thanks, I'd never have worked that out! Looks like you don't need to loop mount it to copy btw.

dsk3-1.exe

Pretty sure that is either a self expanding file or a compressed file of some ms sort by the way.


Not sure why you need that but OK. Some old Win98 setup?

It's DOS networking disk, Am trying to get DOS running on a VM as, although dosbox works well, it tears through battery life at an alarming rate on a laptop! My CAD system is a dos based one. It's old, but I've never found a better one.