Executive summary:
I am installing a UPS with NUT on Ubuntu for the first time. I could
follow the instructions up to "testing shutdowns" but on executing the
recommended command the computer shuts down and never comes back on,
contrary to what the instructions suggest.
I am also seeing regu
> When a UPS unit performs a delayed power off (NUT sets the delay to 20
> seconds
> by default) it deconnects its power outlets which in some UPS units produces
> an
> audible "clunk". The display of lights on the front panel changes, and the
> beeping stops. The delayed power off can be de
> It actually occurred to me that I could try this with another (any other)
> computer here at work, so I did. I set the BIOS to "always on" after power
> cut. I booted ubuntu. I did "sudo shutdown -h now" from the console. The pc
> switched off as expected. Then I removed the power cable and th
> > where in the filesystem should I be looking for the NUT shutdown script
> > please?
>
> It's the SHUTDOWNCMD in upsmon.conf
Thanks!
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> I have an older box set up this way for continuous integration, and it needs
> to see more than a few seconds of power loss for the "always turn on" BIOS
> setting to work. I forget how many different intervals I tried, but 30
> seconds of off time is reliable for that particular box.
Thanks.
> NUT takes charge of sending the required commands through the driver; the
> default values are load.off.delay 20 and load.on.delay 30. These values can
> be
> changed by adding lines such as
>
> offdelay = 30
> ondelay = 100
>
> to the corresponding UPS section in file ups.c
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