Hi there,
I immediately got a reply from Tom Blinn <tpb_at_zk3.dec.com telling me:
 > I don't know why your tty lines were not configured.  They should have been.
 > Being that as it may, your DEC 3000 does not have "ace" interfaces to the
 > serial lines, it has "scc", so you need to cd to /dev and remove the tty00
 > and tty01 device files, and ./MAKEDEV scc0 to create the correct ones.  You
 > need to also check your config file and make sure there are lines in there 
 > for the scc0 and scc1 devices; if not, the terminal names won't work because
 > you won't have the right device driver.  You can also check /var/adm/messages
 > to see if the scc devices are being found at boot time.
 > 
 > Having the device entries for the wrong driver is probably what panics the
 > kernel, although it shouldn't.
Once I removed /dev/tty00 and /dev/tty01 and re-made them using scc0 
there is no problem with using the serial lines on the DEC3000.
Thanks to all of you who helped me.
Johan
-- 
Johan Nyberg, The Svedberg Laboratory, Uppsala University, Uppsala, Sweden
nyberg_at_unix.tsl.uu.se,  http://www3.tsl.uu.se/~nyberg.  Fax: +46-18-4713833 
Tel: +46-18-4713047 (office), +46-18-324314 (home), +46-708-324314 (mobile) 
Received on Sat Jun 28 1997 - 22:41:54 NZST