2650 RH Shutdown

Mark Tinberg mtinberg at securepipe.com
Tue May 18 15:02:01 CDT 2004


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On Tue, 18 May 2004, Mark Watts wrote:

> On Mandrake, if you use the 'Enterprise' kernel (in order to get access to
> >900MB ram), it exhibits the same 'not powering off on shutdown' issue you
> mention. Closer inspection shows that (at least for a 2.4 kernel) the APM
> stuff isn't being compiled. Enabling that and rebuilding the kernel makes it
> power off.

FYI IIRC the reason for this is that APM is not SMP safe.  You should also
be able to poweroff using ACPI, which would be the correct option.  Take a
look and see if ACPI is being enabled on boot, and that it works
correctly.

  http://acpi.sourceforge.net

If the halt binary doesn't power off the system itself, you may just be
able to put a new sysv init script in as the last thing the the
appropriate runlevel that calls the correct command to tell ACPI to power
the system off.

<rant>
Also, as a side note, in the general case, I'd recommend against
rebuilding or replacing vendor supplied kernels on production hardware.
Not only can this invalidate the support agreement, but in many cases you
end up throwing away whatever integration work the distributor has done.
The question becomes, can you do a better job of making a kernel package
than the distributor, and in most cases the honest answer should be _no_.
</rant>

- -- 
Mark Tinberg <MTinberg at securepipe.com>
Staff Engineer, SecurePipe Inc.
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