> > I could to boot with NetBSD-3.1.1 boot.fs.  Also 3.1 and 2.1 is OK.
> > But 4.0 and HEAD can't boot.
> 
> Hmm, okay, it also happens on my NWS-1460.
> 
> It looks newer secondary boot can't load gzipped kernel
> even from ffs on sd0 (gcc4 problem?). I'll take a look later.

Fixed by src/common/dist/zlib/inflate.c rev 1.4.
http://mail-index.netbsd.org/source-changes/2007/12/22/0010.html

I'll send a pullup request later.
(Probably some other m68k ports have the same problem)

Thank you for the report.
---
Izumi Tsutsui