I am running 17.04.
After upgrading the kernel, I usually run Ubuntu Cleaner to remove old kernels.
After the old kernels are removed, the system always requests a reboot. I suspect that it has to do with the grub loader. Is there anything I can run to avoid this reboot, since I will already be running the new kernel and there should be no urgency?
/var/run/reboot*- packages requiring a reboot usually leave their names there.