Can QNX 4 read a floppy disk made by QNX 6 ?

QNX Newsgroups (Archives) qdn.public.qnx4
1

I have a customer who wants a set of disks for an aplication we sold them.
Unfortunately my QNX 4 system is a laptop with a dead battery and dead power
supply so I can’t make disks the easy way. While I wait for the laptop to be
fixed, I’d like to know whether it is possible for me to to make the
customer a set of floppy disks using QNX RTP and whether a QNX 4 machine
will be able to read these disks.

Thanks
David Verbrugge

2

Hi David

Yes. QNX 6 uses the QNX file system by default, including on floppies. So,
if you mount the floppy as:
mount /dev/fd0 /fd0
cp /fd0
umount /dev/fd0
you can then move that floppy over to QNX 4, do the same mount and read it.

Optionally, both will read/write a DOS formatted floppy as well. I think
the mount command is:
mount -t dos /dev/fd0 /fd0
under QNX6. Under QNX4 you’d have to use (in order of increasing
reliability); Dosfsys, Fsys.dos or Fatfsys.

“David Verbrugge” <dverbrugge@alumni.uwaterloo.ca> wrote in message
news:a8t06o$9kb$1@inn.qnx.com…

I have a customer who wants a set of disks for an aplication we sold them.
Unfortunately my QNX 4 system is a laptop with a dead battery and dead
power
supply so I can’t make disks the easy way. While I wait for the laptop to
be
fixed, I’d like to know whether it is possible for me to to make the
customer a set of floppy disks using QNX RTP and whether a QNX 4 machine
will be able to read these disks.

Thanks
David Verbrugge