On Mon, 28 Jun 2021 09:25:00 -0400, Cousin Ricky wrote:

> So how do I begin to upgrade an operating system when the electricity
> might cut out at any moment?  I don't trust the battery backup to last
> long enough to complete the process.

How long is the battery backup likely to run for?

Given that you have a generator with a manual cutover, all you need the 
battery to provide power for is long enough to get the generator started 
up.  Power the battery backup with the generator if/when the power cuts 
out, and let the battery backup keep things running until the generator 
is running.

You can significantly reduce the load on the battery backup by turning 
off any monitor (and other peripherals) if/when the power cuts out.

I have a couple of UPSes in my setup here (I usually don't need them, but 
they're nice to have on the rare occasions the power goes out here), and 
when the power does go out, I come into my office and shut down all non-
essential systems and turn off the monitors.  I have a couple of portable 
battery-powered chargers for phones/tablets and such, so I don't plug 
those devices into the UPS at all when the power's out.

Also, what operating system is in use?  Some do a better job of providing 
recoverability than others if the process is interrupted.



-- 
"I learned long ago, never to wrestle with a pig. You get dirty, and 
besides, the pig likes it." - George Bernard Shaw

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