Ubuntu 18.04.5 LTSにょ
$ sudo apt update; sudo apt dist-upgrade -y
:
The following packages will be upgraded:
libnss-systemd libpam-systemd libsystemd0 libudev1 systemd systemd-sysv udev
7 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
:
$ cat /var/run/reboot-required*
cat: '/var/run/reboot-required*': No such file or directory
ヨシ