Re: Problems with install on Power Mac G3 minitower
On Wed, Mar 31, 2004 at 08:15:20PM -0500, Ron Murray wrote:
> When I press cmd-opt-o-f (should I do this with power off and turn
> the box on while holding them down, or can I do it a bit later? If so,
> how long do you get to do it?), I get the same sequence as that above.
> It may, of course, be trying to display the OF console on the primary
> adapter, but I have no way of telling. How do I set OF's input and
> output devices?
The timing differs a little on every revision of the firmware. I
needed to be holding it down before the chime on my 7600 to get
into OF reliably, but some newer ones seem to look for the keys
just after the chime.
There is a MacOS program to change the OF settings available here:
http://penguinppc.org/projects/quik/BootVars.sit.hqx
This is most likely the easiest way. If you can get Linux running,
you can use nvsetenv. If you have OSX, it comes with nvram, which
is equivalent to nvsetenv. The other way would be inside OF, which
would be tough considering your problem is getting into it.
The input-device should already be "kbd", which was an alias to
the ADB keyboard driver on older models. The output-device is
probably set to "screen", or perhaps a direct path to the internal
video. You'll need to set it to the OF path of your PCI video card.
The Linux kernel gives you a copy of the full OF tree in /proc if
you have the options for it setup.
Brad Boyer
flar@allandria.com
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