How to force a Ultra 1 in 64 bit mode

From: andrea.soliva freehome.ch (andrea.soliva@freehome.ch)
Date: Thu Jan 09 2003 - 16:44:55 EST

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Hi all

I have installed the newes Open Boot version on a Ultra 1. The Ultra 1 tells
me on the boot process following:

Rebooting with command: boot
Boot device: disk File and args:
|
NOTICE: 64-bit OS installed, but the 32-bit OS is the default
        for the processor(s) on this system.
        See boot(1M) for more information.

Booting the 32-bit OS ...

I know that is possible to boot the Ultra 1 in 64bit mode because the
processor could do this (can't find the neccessary information on sunsolve
or somewhere) but two question I have:

- What must be done to boot in 64bit mode
- Is this a good idea, problems....performance etc

If somebody can me give some opinions, suggestions etc would be nice.....by
by...

Andrea Soliva
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