Does ‘shutdown -P now’ actually power anybody’s BBB off? I’ve left mine set for upwards of 15 minutes waiting for it to power down and it hasn’t. poweroff has the same lack of effect. Is there something in Umikaze that’s blocking it?
Isn’t the command ‘shutdown -h now’?
“-h” being for “halt”…
I’m no guru, but never heard of “-P” option and would like to know what it does if it is legit.
‘sudo shutdown’ ? 
from my BBB:
root@kamikaze:~# shutdown --help
shutdown [OPTIONS…] [TIME] [WALL…]
Shut down the system.
--help Show this help
-H --halt Halt the machine
-P --poweroff Power-off the machine
-r --reboot Reboot the machine
-h Equivalent to --poweroff, overridden by --halt
-k Don’t halt/power-off/reboot, just send warnings
–no-wall Don’t send wall message before halt/power-off/reboot
-c Cancel a pending shutdown
root@kamikaze:~#
so -h and -P should be power down. I’ve not tried -h. I can’t test right now as I’ve got a print going.
I’m afk, so can’t peek.
I’m not on the latest Kamikazi yet, but I know I use -h. I’m not sure if my entry in Octoprint’s settings uses “sudo”, but that is worth a try with your -P.
I just tried ‘shutdown’ … works fine as root or sudo…
shutdown -H only halts the system, it doesn’t actually power it down.
@Chad_Hinton it’s curious that it’s not shutting down at all. I’ve never had one of my BBBs refuse to shutdown, even the one hit by a bad short-circuit on the USB… How are you seeing the BBB still up? Console/SSH session still open, LEDs…?
@Jon_Charnas I believe I figured out what I was seeing. I’ve reviewed the syslogs a couple times and think it is actually powering down the BBB but at least one power light is illuminated because of course it cannot physically shut off the power supply. I just don’t recall seeing that when I was using it as a weather station.
Huh. Interesting. On mine it shuts off all LEDs on the BBB proper, only the power LED on the replicape stays on