On Wed, Dec 20, 2017 at 7:54 PM, Zygmunt Ptak <zygmuntp...@gmail.com> wrote:
> 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." > Generally, programs no longer run after the computer has been powered off... To run custom code *before* systemd powers off (or halts) the system: a) Use a shutdown hook (man systemd-shutdown), or b) Use a shutdown initramfs (/run/initramfs/shutdown). -- Mantas Mikulėnas
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