use dosfsys load usb drive problem

I downloaded the usb2.0 driver and installed it.

run io-usb, it creaed /dev/usb
run Fsys.umass, it created /dev/hd1
run mount -p /dev/hd1, it created /dev/hd1t6
mount -t dos /dev/hd1t6, it reported:“mount: cound not exec
“mount_dos”, No such file or directory”

there is not “mount_dos” in my qnx system.

Then I run Dosfsys c=/dev/hd1t6, it created /dos/c
but there is nothing in /dos/c.
and if I run mkdir /dos/c/test, it reported:“No space left on
device”

what is wrong?

I format the disk to fat16, this is ok.
Only fatfsys supports fat32. But there is only Dosfsys in my qnx.

“cnzxy” <yname@21cn-dot-com.no-spam.invalid> wrote in message
news:eetnbb$333$1@inn.qnx.com

I format the disk to fat16, this is ok.
Only fatfsys supports fat32. But there is only Dosfsys in my qnx.

You should have Fatfsys if not you need to upgrade to a more recent version
of QNX4

yes ,my qnx version is 4.25d, so I downloaded the 4.25e patch, but I
have not pkginstall utility, so I can not install the patch now.