Manuel Bouyer writes:
 > Hi,
 > sorry for the off-topic question, but I think some of the guys on this list
 > may have the solution (and the faster I solve this, the longer I'll hack
 > on NetBSD :)
 > I have some SunOS 4.1.4 machine which were installed from keyboard/screen,
 > and now I'd like to use a serial console for them (connected to
 > a serial port of a NetBSD machine).
 > I've set input and output to ttya in the PROM, and the serial console
 > work: I can see message from the PROM and type commands. I can also see
 > kernel boot messages. But once init is started, outputs of /etc/rc is
 > garbage on the serial console, just as if the speed, or number of
 > start/stop/parity bits were wrong. If I boot single user, I also get
 > garbage displayed, but what I type seems to be properly interpreted
 > (if I type 'halt' I get the ok prompt).
 > One the boot completes and getty is started, output is clean again and
 > I can log in without problems.
 > Any idea on how to solve this ?

SunOS changes to 7/E/1 (I think) when it spews out console messages.