On Sun, Dec 14, 2025 at 10:11:19AM -0700, Dave Polaschek wrote:
The main issue is that the UPS HAT doesn’t (or didn’t last spring,
when I was figuring out the pieces) work under OpenBSD, so I’m running
the Raspberry Pi OS lite on it (which is Debian-based). But an
external UPS is probably easier to maintain long-term anyhow
(though not as cute).
I'm running 2x APC BackUPS 1500. One is connected to a rpi4b
running OpenBSD 7.8 which runs apcupsd. I'm trying to make
nut server work on it, servicing nut clients connected to
this ups.
The other ups has a rpi2b running nut server on RaspiOS.
I'm using this one as a guide to getting the rpi4b nut configured.
When capacity drops to less than 75% the VMs gently power off, then at
65% the servers do the same. The remaining capacity is enough to power
the switches, rpis and routers for a few hrs.
I'd never have thought of the rpis having their own ups hat ;)
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