Hi,
I need to mount a virtual disk image on a vnd, for use with bochs
on a NetBSD/macppc 2.0_BETA system.
I created an image with bximage, then I formatted the disk with an
only FAT (the first time 16, then 32) partition via freedos on bochs.
When I

vnconfig vnd0 freedos.img && mount /dev/vnd0a /mnt/freedos
everything goes well.

ls /mnt/freedos works (it shows me the right freedos files),
but I cannot copy/move (I think ''write'') any file or directory to the 
disk:

cp: Input/output error

Is this normal? Did I make any mistakes? What can I do now?
Thank you very much for replying!

Davide