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How to disallow Ubuntu to upgrade from like 11.10 to 12.04?

I know that its your wish if you want to upgrade, but I don't want the message in update manager that says a new release is available to get displayed.

All help will be appreciated

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3 Answers 3

up vote 10 down vote accepted

Open the /etc/update-manager/release-upgrades with your favorite text editor, ie:

sudo nano /etc/update-manager/release-upgrades

enter image description here

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

If you want a graphical way of doing it open the Ubuntu Software Center and under Edit > Software Sources > Updates you will find a Notify me of a new Ubuntu version option, from the drop box select Never.

enter image description here

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Thanks a lot! Can you also tell me how'd you change the terminal background? Pretty cool I must say! :) –  user51447 Mar 25 '12 at 15:36
    
@user51447 Edit > Profile Preferences > Colors and Edit > Profile Preferences > Background will allow you to config what you need in gnome-terminal. If the answer works please use the check green mark next to the up and down vote to mark is answered. –  Bruno Pereira Mar 25 '12 at 15:40

To stop Ubuntu nagging you:

nano /etc/update-manager/release-upgrades

change Prompt=normal to Prompt=never

To exit nano

Ctrl-X, Y
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You can also just disable checking altogether by doing apt-get remove ubuntu-release-upgrader-core

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