I have been using simple privilege escalation to poweroff the machine, but looking through the source code for s6-linux-init-shutdownd and friends, it appears the only constraint on interacting with the daemon is the permissions on run-image/service/s6-linux-init-shutdownd/fifo.
The default appears to be: 600 root root I've changed it on my system to be: 620 root power and added my user to the power group. This seems like the cleanest way to implement unprivileged poweroff/reboot, but I'm concerned that it's not possible by default. Is there a better way, or is it just meant to be done manually? Thanks! --Dallin
