Ubuntu 7.04 and power saving on a laptop

[Scott Ehrlich]

I have an Ubuntu 7.04 laptop at home and want to disable ALL power saving 
on it.   If I leave the system alone for a few days, the hard drive spins 
down and it is nonresponsive to interactive requests, save for a 
successful ping.

The machine is a Compaq Armada M700 (yes old, but still very usable).

I chmod'd 000 on the apm and acpi services in /etc/init.d, but
ps auwx|grep acpi still reveal:

[kacpid]
[kacpi_notify]
/usr/lib/hal/hald-addon-acpi

There are no processes per ps auwx|grep apm


With the above said, what magic do I need to perform to keep the hard 
drive always running?   If it comes down to a custom kernel, I'll do it, 
but I would have to believe a daemon or other feature already available 
can control the task.

I could always just create a cron job that touches a file on the hard 
drive every hour ;-)

But seriously, what additional service(s) should I be looking at?

Thanks.

Scott

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