The constant nagging by you systemd people worked. I’ve written a unit that does what I need it to do. That was more annoying than I think it needed to be, but well… my solution didn’t work at all.
AFAIK kernel itself doesn’t send any signals to processes on shutdown/reboot, it just stops executing them. This is a job service manager (e.g. systemd) that terminates processes using SIGTERM before asking kernel to shutdown.
That’s why you launch them through systemd.
The constant nagging by you systemd people worked. I’ve written a unit that does what I need it to do. That was more annoying than I think it needed to be, but well… my solution didn’t work at all.
AFAIK kernel itself doesn’t send any signals to processes on shutdown/reboot, it just stops executing them. This is a job service manager (e.g. systemd) that terminates processes using SIGTERM before asking kernel to shutdown.