Problem installing setup-1.7

[Steffen Sledz]

I tried to install setup-1.7 on a system running a "normal" release 
before. I've deleted the whole C:\cygwin dir from the disk and removed 
all cygwin/cygnus related items from the registry.

But after running the new setup the mounts for /usr/bin and /usr/lib 
where missing. Also there is no /etc/fstab file. What went wrong here?

Steffen