A question that's asked from time to time is, why does my emc computer not
power off?
I believe I have solved this problem: kexec is used to load a kernel which
enables ACPI and then executes poweroff.
For the end user, the rtai-patched kernel must be recompiled with kexec
support (which the Ubuntu kernel already has), and kexec-tools must be
installed, along with an additional kernel image that's 1.9MB. Kexec-tools
has to be reconfigured.
Rather than trying to describe all steps, I wrote a bash script that does
almost everything. Note, it's only been tested on Debian Etch, but I think
it will work on Ubuntu.
http://openpaste.org/en/17483/
Mark
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