Changing PREFIX on diskless machine

I remember being able to change the prefix on QNX4. Is there an
equivalent way to do it on QNX6?

We have a diskless machine booting from flash. The boot image sets up a
network connection, but then, I want all filesystem requests that go to
/ to be mapped to /

I prefer not to have to create symbolic links for every directory, i.e.

/bin → /