[systemd-devel] Custom power off

[Zygmunt Ptak]

Hi systemd devs and users,

I want to implement custom power off method.
I added to the yocto script: /usr/sbin/halt.local which will power off
my machine.

But from what I see it is not correct.
Ive got this from my machine:

[  OK  ] Reached target Shutdown.
         Starting /usr/sbin/halt.local Compatibility...
My power off
[   76.916101] EXT4-fs (mmcblk1p1): re-mounted. Opts: (null)
[  OK  ] Started /usr/sbin/halt.local Compatibility.
[  OK  ] Reached target Final Step.
         Starting Power-Off...
[   77.102708] systemd-shutdown[1]: Sending SIGTERM to remaining processes...
[   77.124900] systemd-journald[203]: Received SIGTERM from PID 1
(systemd-shutdow).
[   77.174386] systemd-shutdown[1]: Sending SIGKILL to remaining processes...
[   77.194122] systemd-shutdown[1]: Unmounting file systems.
[   77.200107] systemd-shutdown[1]: Remounting '/var/volatile'
read-only with options ''.
[   77.208187] systemd-shutdown[1]: Unmounting /var/volatile.
[   77.253911] systemd-shutdown[1]: Remounting '/tmp' read-only with options ''.
[   77.261142] systemd-shutdown[1]: Unmounting /tmp.
[   77.314075] systemd-shutdown[1]: Remounting '/' read-only with
options 'data=ordered'.
[   77.322732] EXT4-fs (mmcblk1p1): re-mounted. Opts: data=ordered
[   77.328818] systemd-shutdown[1]: Remounting '/' read-only with
options 'data=ordered'.
[   77.336983] EXT4-fs (mmcblk1p1): re-mounted. Opts: data=ordered
[   77.342981] systemd-shutdown[1]: Remounting '/' read-only with
options 'data=ordered'.
[   77.351167] EXT4-fs (mmcblk1p1): re-mounted. Opts: data=ordered
[   77.357245] systemd-shutdown[1]: All filesystems unmounted.
[   77.362835] systemd-shutdown[1]: Deactivating swaps.
[   77.367923] systemd-shutdown[1]: All swaps deactivated.
[   77.373168] systemd-shutdown[1]: Detaching loop devices.
[   77.390252] systemd-shutdown[1]: All loop devices detached.
[   77.395883] systemd-shutdown[1]: Detaching DM devices.
[   77.401337] systemd-shutdown[1]: All DM devices detached.
[   77.409285] systemd-shutdown[1]: Powering off.
[   77.431515] reboot: System halted

"My power off" will power off machine, but to early.

I want to call my script after:
"[   77.409285] systemd-shutdown[1]: Powering off."

How to do it?

Best Regards