[Nut-upsuser] No power cycle after shutdown on Atlantis Land OnePower A03-S1001
baldiniebaldini at gmail.com
Sat Oct 3 01:01:16 UTC 2015
my Atlantis UPS (model on "subject" line) fails to cycle off the outlet power after a power failure
on the mains followed by an automatic shutdown of the computer. The UPS simply remains always on,
preventing the computer from restarting.
** Setup: **
Nut version 2.7.2
Nut driver blazer_usb
The config files are pretty default; the peculiar customization is NOTIFYCMD from
/etc/nut/upsmon.conf, which is:
From the bottom of the same upsmon.conf, the ONLINE and ONBATT events have the additional "+EXEC"
flag, so these events are passed to my ups_events.sh .
This script is straightforward, pastebin here: https://pastebin.mozilla.org/8848229
Apart from keeping logs, the only actions the script performs are:
• when ONBATT is received:
shutdown -h +3 &
upscmd -u admin -p mypass myups shutdown.return 360
• when ONLINE is received:
upscmd -u admin -p mypass myups shutdown.stop
and everything seems to work fine, no errors reported, and even from /var/log/syslog all seems smooth:
Instant command: admin at 127.0.0.1 did shutdown.return with value "360" on myups
instcmd: command [shutdown.return] handled
When I manually unplug the mains, the computer waits 3 minutes, shutdowns, and there it stays. As
per the above commands, issued from ups_events.sh, it is instead supposed to boot up after 6 minutes
(360 / 60 seconds) counted from t₀, the moment of the unplug. After 20 seconds from the shutdown,
and largely before the 6-minutes scheduled cycle, the UPS LEDs indicate the battery is again fully
charged (*). Ever after the shutdown, the UPS appears to never cycle its output, and the computer
(*) Side note: the UPS is moderately heavy duty, with redundant batteries, and the computer drains
approx. 25% of its nominal output power; this is to justify the fast recharge.
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