So, I'm able too boot the precompiled kernel from 20040706. But can't
use that because I have to compile a custom kernel with the line
"config netbsd root on ? type ? dumps on none" in kernel config.
Otherwise the kernel booting will crash after "root file system type:
ffs". This issue was discussed on this list before, so no more about
it for now.

Booting my own custom kernel with your build of hpcboot doesn't freeze
the device, but it stops the boot process.

> > > Sorry to say this, but I think you recalled wrong. It doesn't give me
> > > anything additional information than the hpcboot I uudecoded from the
> > > current sources.
> > 
> > Damn.  It *is* debugging version, but there's no external knob to turn
> > debugging on.  I can build you one with debugging turned on.
> > 
> > Data point: that binary worked for the person I asked to test it (I
> > don't have an hpcarm machine) - it contains a bug fix for the "only
> > Japanese model work".
> 
> Hmm, apparently I misread the sources.  All the relevant DPRINTFs are
> there in the output.
> 
> So, does it hangs or crashes?  What is the latest kernel that you can
> successfully boot (e.g. 2.0, some earlier -current kernel)?