Hi!

If you want to share directories between DOS and Linux easily,
you could use DOSEMU2 (or DOSBOX) which are both optimized for
DOS. However, they are no neutral simulations of hardware for
the same reason. For example you will have to load specific
DOSEMU2 drivers to use some features. They are of course part
of what you get when you install DOSEMU2, but the handling is
quite different from VirtualBox "here is an imaginary PC, do
with it what you want to do".
http://dosemu2.github.io/dosemu2/

You can basically tell DOSEMU2 that any Linux directory of
your choice will be made visible as a drive letter of your
choice for DOS, even including a bootable C: drive :-) You
have to load special drivers for DOS after booting, because
otherwise the drive will be read-only without DOS noticing:
Writes would be accepted, but almost immediately forgotten.

For VirtualBox and similar, you could for example use a floppy
disk image and configure mtools to access it (you get commands
such as mcopy or mdir for Linux with it) and make sure to NOT
have VirtualBox open at the moment when you modify the floppy
image. You can of course also mount the floppy if you have the
access rights for that, or user mode tools are installed for it,
but again: There is a risk of confusion from both VirtualBox and
Linux accessing the same "floppy", so try to work in a way which
makes sure that only one of the two accesses the image at a time.

We also have VMWare tools for shared drive access, which uses
DOS drivers to access some special VMWare feature, but that is
of course for VMWare and not for VirtualBox.

Regards, Eric




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