=======================================================
SUN: 32/64 bit kernel boots
=======================================================
:Title:        SUN: 32/64 bit kernel boots
:Author:       Douglas O'Leary <dkoleary@olearycomputers.com>
:Description:  SUN: 32/64 bit kernel boots
:Date created: 09/2001
:Date updated: 10/2001
:Disclaimer:   Standard: Use the information that follows at your own risk.  If you screw up a system, don't blame it on me...

Apparently there's a couple of 32 bit drivers and some software that doesn't 
work under the new 64 bit kernels. The software that I've heard of is some 
firewall apps; however, if there's one, there's probably more.

So, you have to boot 32 bit kernels by default. How do you do that?

To boot a 32 or 64 bit kernel only once do the following. This leaves the 
default as it was previously set so it only affects this boot:

*   32 bit:: 

        ok boot disk kernel/unix

*   64 bit::

        ok boot disk kernel/sparv9/unix

To set one or the other kernels as the default, update the boot-file 
parameter thusly:

*   32 bit::

        ok setenv boot-file kernel/unix

*   64 bit::

        ok setenv boot-file kernel/sparv9/unix

Then, boot as normal. From hither on, you'll be booting whichever kernel you 
set as default.

To determine which kernel you're booting, execute the ``isainfo`` command