> I tried the latest GENERICSBC (29 as stated above) on my 
> PowerBook 520 in order to figure out whether the sn driver
> is working. Unfortunetely it hangs while booting. I can boot
> single-user without any problems. But if I want to go multi-user it hangs
> after:
> 
> [...]
> setting tty flags
> [...]

This is rather odd.  Can you please try putting a 'set -x' in /etc/rc.
Hmmm....  Even better--if you think for sure that it is related to the
SONIC support, could you try configuring the sn0 interface by hand?
Does that hang the system?

-allen

-- 
              Allen Briggs - end killing - briggs@macbsd.com