[ale] Running a hands off remote Linux installation

[John Pilman]

I set up a pc at my mom's house with some security cameras attached, and I
had trouble with the power going off occasionally.  In the BIOS there was a
setting to tell the computer to boot whenever the external power came on,
but it was poorly named; something like 'Power Off Options.'   There were
three options, boot, don't boot, and boot if it was running when external
power went off.  It works, mostly, but it does not have an orderly shutdown
when the power goes off.  I think that would improve things.
...John

On Tue, Jul 31, 2012 at 9:07 AM, Jim Lynch <ale_nospam at fayettedigital.com>wrote:

> I want to set up a hands off system at a remote location.  I'll put a
> large UPS to keep it running through short power outages but I'm
> concerned about longer outages.  While I obviously want it to be
> available most of the time, if the power goes out for hours, it won't be
> available and I can live with that.  I can sense the failure and do an
> orderly shutdown before the UPS batteries go completely flat.
>
> However I'm stumped on how to get the system to turn itself back on
> after the power comes back.  I know I can set the bios to boot on power
> up automatically but that would require the computer to power off
> externally I would guess and that's not an orderly shutdown besides with
> the UPS in line, I don't really have a way to sense when the mains
> actually come back.
>
> I've thought about putting a small controller, like a Arduino, somewhere
> with a relay to momentarily key the switch leads in the computer when I
> sense all is back to normal, but I'm thinking there might be a better way.
>
> Any ideas?
>
> Thanks,
> Jim.
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