Missing bits noted on 16.04 to 18.04 do-release-upgrade

[Mason Loring Bliss]

I've noted two things on a recent do-release-upgrade wherein I upgraded a
system from 16.04 to 18.04. It largely went well, but after the upgrade I
didn't see Canonical Livepatch status in my motd.

When I looked, I noted update-motd:amd64 missing, so I installed that, but
that still didn't make my motd show Livepatch status. A bit of searching noted
that /etc/cron.daily/ubuntu-advantage-tools runs to update
/var/cache/ubuntu-advantage-tools/ubuntu-advantage-status.cache, and evidently
that hadn't happened.

That would be a very reasonable thing to run on boot, not just daily out of
cron. I'd think that on boot, perhaps as part of the livepatch service
start-up, would be the most reasonable place to do that, in addition to the
cron job.

It's as yet unclear why update-motd was missing. I didn't see spoor from the
do-release-upgrade in /var/log/apt/history.log, which is where I'd have
naively expected to see it.

[Brian Murray (brian-murray)]

The log files in /var/log/dist-upgrade/ specifically apt.log and main.log would be helpful in determining why the package was removed.