Ubuntu 20.04.6 LTSわよ
$ sudo sh -c 'apt update && apt dist-upgrade -y'
:
The following packages will be upgraded:
libxslt1-dev libxslt1.1
2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 standard LTS security updates
:
$ cat /var/run/reboot-required*
cat: '/var/run/reboot-required*': No such file or directory
ヨシ