I have also experienced problems getting the 1.6 kernel to boot on my
z50.

Same symptoms; kernal is not able to access wd, eventually times out
with messages like this:

wd0d: device timeout reading fsbn 0 (wd0 bn 0; cn 0 tn 0 sn 0), retrying
wdc1:0:0: lost interrupt
       type: ata tc_bcount: 512 tc_skip:0
wdc1:0:0 recal drive fault

It's good to know that I can grab a 1.5Z kernel to get things working
in the short term.  Does anyone know where I can grab said kernel off
the web?

-russ

Adam K Kirchhoff <adamk@voicenet.com> writes:

> Has anyone been successful in getting the kernel from NetBSD 1.6 to boot 
> on their machine?
> 
> On my z50, the kernel has considerable difficulties trying to mount wd0a 
> and eventually gives up.  I have to reboot and use my old 1.5Z kernel :-)  
> 
> Adam