RE: pmac_halt() bug

When in MacOS I can just unplug the power cable and put it back and the
system will power on. On linux it's not working - after power cable is back,
the system is not powering on.
After playing with /etc/init.d/halt script I managed to bring system to the
state where all processes are stoped and all FS are unmounted but the system
is still up.
As I understand, I need some module or tool to write something to the MAC
bios or eeprom whatever, during linux startup. Can somebody tell me what can
I use ?
Thanks,
Igal.

-----Original Message-----
From: Benjamin Herrenschmidt [mailto:benh@kernel.crashing.org]
Sent: Tue, November 11, 2003 10:25
Subject: Re: pmac_halt() bug

That's precisely it. Some (all?) pmacs with server mode don't
automatically turn on after an intentional shutdown, only after power
is lost. So the idea is to have the UPS signal the computer to halt,
and then have the UPS cut power once it's safe. Later the UPS switches
power back on and the computer will automatically boot.

Ok, 2 things:

- How does the UPS knows it's "safe" ?
- And right, I need to disable server mode to be able to shut down :) So
I indeed to that on those machines

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