PXE Boot stuck on reboot/shutdown

Just updated fro OE 6.0.3 to LE Alpha and i'm having the same problems although sometimes the shutdown works.

Yes PXE is still supported. The LE 7.90.x alphas shut down the system a little differently than 7.0.x (and OE 6.90.x) which would try to unmount /flash and /storage, potentially causing problems when still in use. Shut down logs would be useful, "journalctl -a | pastebinit".

My journalctl doesn't log the previous sessions, is there anyway i can change it so i can provide a log?

Quote from x010

My journalctl doesn't log the previous sessions, is there anyway i can change it so i can provide a log?

With 7.90.007, add "debug" to the end of your kernel command line, then reboot. Reproduce a failed shutdown, then on the next boot "journalctl -a | pastebinit". You can now remove "debug".

I've added the debug flag on my kernel command but i can't get journalctl to log the shutdown.

kernel /libreelec/alpha/KERNEL
    append ip=dhcp boot=NFS=10.0.0.5:/srv/tftp/libreelec/alpha disk=NFS=10.0.0.5:/srv/nfs/storage/libreelec/alpha quiet splash ssh debug

Here's the latest log JBGM

Right sorry, add "debug debugging" - the first enables kernel debug, the second enables systemd debug (and preserves the journal across boots).

After you've enabled the debugging, reboot - presumably your system will hang, so power cycle etc.

Once the system is back up, run the following:

logger rebootmarker && sync
reboot

The first command just adds an entry to the log which will make finding where you started the shutdown that bit easier.

Hopefully the system will hang on shutdown, in which case power cycle.

After the system is back up, run:

journalctl -a | pastebinit

and paste the link. Thanks.

Thank you for the clear instructions.

Here's the log:

XTiB

Thanks. I haven't had a chance to go through your log in detail, but I suspect the LibreELEC systemd shutdown sequence needs tweaking to fully support any type of network booting.

At the moment I believe the device (PC, RPi3 etc.) is hanging before restarting, most probably because the network (connmand) or some other vital network-related resource has been shut down too early, which is fairly bad news when booting over the network...

No problem, just happy to help in any way.

If you need anymore logs let me know.

Hey.

I've got the same problem. Worked on openelec, but not libreelec.
Here's my debug from the shutdown:

Nov 13 20:39:38 LibreELEC systemd[1]: Accepted new private connection.
Nov 13 20:39:38 LibreELEC systemd[1]: Got message type=method_call sender=n/a destination=org.freedesktop.systemd1 object=/org/freedesktop/systemd1 interface=org.freedesktop.systemd1.Manager member=StartUnit cookie=1 reply_cookie=0 error=n/a
Nov 13 20:39:38 LibreELEC systemd[1]: poweroff.target: Trying to enqueue job poweroff.target/start/replace-irreversibly
Nov 13 20:39:38 LibreELEC systemd[1]: udevil-mount@-dev-sdb2.service: Installed new job udevil-mount@-dev-sdb2.service/stop as 486
Nov 13 20:39:38 LibreELEC systemd[1]: wpa_supplicant.service: Installed new job wpa_supplicant.service/stop as 466
Nov 13 20:39:38 LibreELEC systemd[1]: nmbd.service: Installed new job nmbd.service/stop as 478
Nov 13 20:39:38 LibreELEC systemd[1]: umount.target: Installed new job umount.target/start as 454
Nov 13 20:39:38 LibreELEC systemd[1]: sysinit.target: Installed new job sysinit.target/stop as 519
Nov 13 20:39:38 LibreELEC systemd[1]: pulseaudio.service: Installed new job pulseaudio.service/stop as 520
Nov 13 20:39:38 LibreELEC systemd[1]: final.target: Installed new job final.target/start as 530
Nov 13 20:39:38 LibreELEC systemd[1]: kodi.service: Installed new job kodi.service/stop as 461
Nov 13 20:39:38 LibreELEC systemd[1]: system-xorg\x2dconfigure.slice: Installed new job system-xorg\x2dconfigure.slice/stop as 512
Nov 13 20:39:38 LibreELEC systemd[1]: network-online.target: Installed new job network-online.target/stop as 522
Nov 13 20:39:38 LibreELEC systemd[1]: system-udevil\x2dmount.slice: Installed new job system-udevil\x2dmount.slice/stop as 483
Nov 13 20:39:38 LibreELEC systemd[1]: connman.service: Installed new job connman.service/stop as 464
Nov 13 20:39:38 LibreELEC systemd[1]: user.slice: Installed new job user.slice/stop as 482
Nov 13 20:39:38 LibreELEC systemd[1]: graphical.target: Installed new job graphical.target/stop as 459
Nov 13 20:39:38 LibreELEC systemd[1]: poweroff.target: Installed new job poweroff.target/start as 450
Nov 13 20:39:38 LibreELEC systemd[1]: cron.service: Installed new job cron.service/stop as 498
Nov 13 20:39:38 LibreELEC systemd[1]: tmp.mount: Installed new job tmp.mount/stop as 471
-- Reboot --

Thankfull for some help.

Quote from milhouse

At the moment I believe the device (PC, RPi3 etc.) is hanging before restarting, most probably because the network (connmand) or some other vital network-related resource has been shut down too early, which is fairly bad news when booting over the network...

That is exactly the problem. But there is a solution. To circumvent connman to shutdown the interface on reboot/shutdown you need to prevent connman to manage the interface.
Connman has an option to ignore interfaces via a blacklist in its configuration. The configuration is hard coded in squashfs image. But there is a script (/usr/lib/connman/connman-setup) that checks for a custom config before starting connman. Simply copy /etc/connman/main.conf to /storage/.config/connman_main.conf and add the network interface to NetworkInterfaceBlacklist option.

Quote from Goeran

That is exactly the problem. But there is a solution. To circumvent connman to shutdown the interface on reboot/shutdown you need to prevent connman to manage the interface.
Connman has an option to ignore interfaces via a blacklist in its configuration. The configuration is hard coded in squashfs image. But there is a script (/usr/lib/connman/connman-setup) that checks for a custom config before starting connman. Simply copy /etc/connman/main.conf to /storage/.config/connman_main.conf and add the network interface to NetworkInterfaceBlacklist option.

Worked like a charm!
Thank you