update-motd not updating /etc/motd after LTS upgrade

[compdoc]

You have to recreate the link for /etc/motd and then find out why
/var/run/motd is not being generated, since this is the actual file.

 And I don't understand why you are missing most of the scripts in
/ect/update-motd.d/   ?

 You should have by default:

00-header
10-help-text
90-updates-available
91-release-upgrade
98-fsck-at-reboot
98-reboot-required
99-footer