Thus spake der Mouse
> > gdb -k netbsd.1 netbsd.1.core
> Isn't that out of date?  I think the current incantation is
> 
> % gdb netbsd.1
> (gdb) target kcore netbsd.1.core

Yes.  In fact if you enter the former it gives the the usage as you
explain and exits.

-- 
D'Arcy J.M. Cain <darcy@{druid|vex}.net>   |  Democracy is three wolves
http://www.druid.net/darcy/                |  and a sheep voting on
+1 416 424 2871     (DoD#0082)    (eNTP)   |  what's for dinner.