I've installed updates and noticed that my Ubuntu 16.04 changed it's recognition to elementary OS. There is elementary everywhere, in grub (no more Ubuntu) In the settings menu:
I mean, it's not a huge issue, by I love Ubuntu and would not like to see it anywhere
cat /etc/apt/sources.list /etc/apt/sources.list.d/*.list
as an edit to your question. – Thomas Ward Apr 16 '18 at 22:52sudo apt-get --reinstall install base-files/xenial-updates
– Artemio Apr 16 '18 at 22:55