On Mon, 9 Mar 2009 23:43:59 +1100 Jonathan Gray <jsg@xxxxxxxxx> wrote:
> Looks like you need to be using boot.mac not ofwboot
> going by gwk's oldworld article:
> INSTALL.macppc should really document the purpose of boot.mac...
Thanks. It's an interesting article *but* ...
For instance on my machines the only change required is to tweak
0 > setenv real-base F000000
0 > reset-all
I *think* the above, quoted exactly from the article, has an extra zero?
By attempting the above, the system rebooted, and came up with a
black screen. Typical CMD-ALT-O-F access to OF doesn't work now.
Attempting to reset the PRAM via CMD-ALT-P-R doesn't work.
I pulled the power cord and battery, then held down the system power
button for a while to drain the caps. Then I let it sit for an hour to
make sure it was completely dead (time mostly desperately spent looking
for an answer). After all this, another attempt at resetting the PRAM
worked with the CMD-ALT-P-R.
I made a second attempt at `setenv real-base F000000` with the same
black screen effect. So far I've been unable to revive it with the
above method. It might be that I'm just too impatient and not waiting
I'm guessing it's a PMU (Power Management Unit) issue.
Subsequently, I've found the battery is nearly dead, so I'll get a
replacement before I start messing with this again.