On Wed, 28 Oct 2020 20:49:38 +0000, Tilt from Arch wrote:

> Hi all,
> I just assembled a raspberry-pi with these items:
> - pi4 board (4gb ram)
> - 16gb microsd card (with archlinux-arm 64bit on);
> - X832 board (to attach a 3.5 HDD);
> - 12V power supply (as needed by X832).
>
>
> The system started as soon as I plugged in the power adapter to the wall
> socket (red and blue lights blinking)
> This is a headless configuration (no monitor, no keyboard, no mouse), so
> I managed to ssh to the archlinux OS, configure pacman keyring and then
> was dinner time :)
>
> To shutdown the system I sent this command via ssh:
> systemctl poweroff
>
> The ssh connection was closed, but the raspberry had red lights still
> on, and I could hear a fan spinning.
>
> I waited 5 minutes without visible changes, then I pulled the plug off
> the socket.
>
> Can you please confirm I shuted down the system the proper way?
>
> Thanks in advance, bye!

Being 'old school' I tend to use
  sudo shutdown -h now

There is also information available about how to use a push button wired
to a couple of pins and some software to make a shutdown switch.

Stuff powered by the usb-c port will still have power, but it is safe to
pull the plug.

--- SoupGate-Win32 v1.05