> > #define       DEVZERO makedev(2, 12)          /* major,minor of /dev/zero */

The major# of 2 is what Markus told me to use for m68k machines.
Perhaps this is only valid for 4.0.3 machines. Can someone with a
4.0.3 machine tell me if that is what it is from, or perhaps Markus
can clarify?

If /dev/zero is supposed to be a 3,12 for all Sun machines now, then
we should update this immediately. It is also possible that I could
hack sun_misc.c further to deal with either 3,12 or 2,12.

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