Ubuntu – Update available message after installing update

13.04do-release-upgradeupdates

I have just updated my HTPC to 13.04 (using do-release-upgrade) and when logging in I get the "new release available" message, while there isn't as I've just upgraded and running that version.

me@mybox: ~$ssh htpc
me@htpc's password: 
Welcome to Ubuntu 13.04 (GNU/Linux 3.8.0-19-generic i686)

 * Documentation:  https://help.ubuntu.com/

New release '13.04' available.
Run 'do-release-upgrade' to upgrade to it.

So I am at 13.04, but I can upgrade to 13.04. Sounds like a plan. Or not.

I have done an apt-get update and upgrade (was nothing new) and rebooted the machine. Why is this message still here, and what needs fixing so it goes away?

For more info maybe:

htpc:~$ uname -a
Linux HTPC 3.8.0-19-generic #29-Ubuntu SMP Wed Apr 17 18:19:42 UTC 2013 i686 athlon i686 GNU/Linux

Best Answer

It looks like the culprit is /etc/update-motd.d/91-release-upgrade

This calls /usr/lib/ubuntu-release-upgrader/release-upgrade-motd

This file checks for the file /var/lib/ubuntu-release-upgrader/release-upgrade-available

If that exists, it goes in the motd. If it doesn't, it calls /usr/lib/ubuntu-release-upgrader/check-new-release.

That last command does give the right result, but the file was not removed for some reason. I removed the file and re-ran the commands. The msg-of-the-day wasn't put back.

So the final issue was the 'cache' of 'update needed' wasn't cleared.

I removed this file and it was fixed without breaking anything :)

sudo rm /var/lib/ubuntu-release-upgrader/release-upgrade-available

This was a 12.10 -> 13.04 upgrade. On my other box (12.04 LTS, having the same issue) I had to look in another location: 

sudo rm /var/lib/update-notifier/release-upgrade-available
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