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I have Ubuntu 12.04 LTS on one of my old laptop. Each time I login through TTY or SSH it says:

Welcome to Ubuntu 12.04.5 LTS (GNU/Linux 3.4.0-030400-generic i686)

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

New release '14.04.1 LTS' available.
Run 'do-release-upgrade' to upgrade to it.

However, this system cannot be upgraded because this machine is too old to support PAE, and I don't want to upgrade it either. Could you please tell me how to hide this notification (the last two lines) at terminal login? It doens't seem to be related to the shell I use.

I found a lot of questions about disabling the GUI Update Manager pop-ups, but didn't find anything helpful to the terminal notification.

muru
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bfrgzju
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4 Answers4

19

Do this:

sudo chmod -x /etc/update-motd.d/91-release-upgrade

This only removes the message about a release upgrade. It keeps the message about package updates, including security updates, which I would like to keep getting.

Benjamin Atkin
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12

That output is part of the MOTD. To disable it, remove the execute permissions for /etc/update-motd.d/90-updates-available. 

sudo chmod -x /etc/update-motd.d/90-updates-available

The output maybe cached for a while, it may take a few login attempts for the message to clear out.

muru
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  • Thanks a lot! This is exactly what I need. Actually it worked immediately for me. – bfrgzju Apr 30 '15 at 22:55
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    Also had to chmod -x /etc/update-motd.d/91-release-upgrade – sankoz Mar 06 '17 at 05:29
  • I was wondering for a whole now: what do I have to read to know such things? In the old days I used to read the 'Secrets' book series by IDG Press about the registry and DOS. I am looking for an 'under the hood' guide specifically for Ubuntu and Linux in general... – Pinguinim Aug 16 '18 at 10:24
1
sudo nano /etc/update-manager/release-upgrades

Change the Prompt= line from Prompt=lts to Prompt=never.

OR

sudo sed -i 's/Prompt=.*/Prompt=never/' /etc/update-manager/release-upgrades
rise worlds
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1

Updating the config of update manager is to be the better option as answered by user rise worlds, as you're configuring the behavior of the daemon itself.

sudo sed -i 's/Prompt=.*/Prompt=never/' /etc/update-manager/release-upgrades

This is clearly spelled out in

cat /etc/update-manager/release-upgrades

The future ou will not run into problems tracking down the changing-between-releases file names in /etc/update-motd.d/, and you can even easily change the behavior to check for LTS and non-LTS versions of Ubuntu. If you really want to get heavy-handed on the upgrade check, remove execute:

sudo chmod -x /usr/lib/ubuntu-release-upgrader/release-upgrade-motd
Mike Bantz
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