What mechanism Hyper-V use to signal a Linux guest to gracefully shut down?
Somehow CoreOS does gracefully shut down, but another Linux doesn't (it is just abruptly powered off)
Linux guest graceful arrêt in Hyper-V
Re: Linux guest graceful arrêt in Hyper-V
I figured it out. `drivers/hv/hv_util.c` calls `orderly_poweroff()` from `kernel/reboot.c` which subsequently fails to find `/sbin/poweroff` and does only a minimal cleanup.