LibreElec 8 and systemd

I've tried to find information that explains how systemd is implemented in LE8 - without any success. Can anyone point me to a resource that can explain the structure and how services are managed? LE8 does not appear to follow the traditional /etc/systemd init script approach - and it is difficult to figure out what is happening without some documentation ...

Quote from lrusak

systemd on LibreELEC works exactly the same as on any other system. The only difference is that /etc/systemd/system is a symlink to /storage/.config/system.d

Thank you for this Irusak - I've located /storage/.config/system.d but there is no link from /etc/systemd/system on my LE8 installation. I get:

# ls -la /etc/systemd/total 6drwxrwxr-x 2 root root 91 Feb 21 19:48 .drwxrwxr-x 20 root root 929 Feb 21 19:52 ..-rw-r--r-- 1 root root 1017 Feb 21 19:48 journald.conf-rw-r--r-- 1 root root 1021 Feb 21 19:48 logind.conf-rw-r--r-- 1 root root 1604 Feb 21 19:48 system.conf-rw-r--r-- 1 root root 1130 Feb 21 19:48 user.conf

This is why I am confused ...

Thanks again - should there be a link /etc/systemd/system -> /storage/.config/system.d? Is this correct?

I am asking this because I have tried to move /storage from my microsd to a usb but presently this breaks systemd services, most notably for me tvheadend ... if it is safe to do so I can apply a link and I think this may solve the problem ... I just do not want to break anything in the process ...

Quote from lrusak

No there shouldn't be a link

Moving /storage to a different drive shouldn't be an issue at all as long as you copy all the relevant data.

So ... without a link from /etc/systemd/system ... I still don't understand how systemd is implemented in LE8 ...

My process to redirect storage was posted here thread-5519-post-36819.html#pid36819 but it has broken tvheadend server and I think it has broken systemd ...

Quote from lrusak

No there shouldn't be a link

Moving /storage to a different drive shouldn't be an issue at all as long as you copy all the relevant data.

Irusak - you are absolutely correct. In this post [ thread-5519-post-37685.html#pid37685 ] mglae has identified that I have used the wrong rsync options - so my originally posted rsync -rtv ... should have been rsync -av ... which is the archive option (this ensures all symlinks are copied as well).

Having done this correctly everything works now.

Still I don't understand how systemd in works in LE8 however - there must be a symlink somewhere - but it is not in /etc/systemd ...

Quote from lrusak

Like I said, there is no symlink, we patch the source code

Got it - thanks Irusak ...