Ubuntu

Update manager (12.04 LTS) will not upgrade to 12.10

Asked by Ed Raicevic

I am attempting to upgrade my system from 12.04 LTS to 12.10 . When I start Update manager it tells me I can upgrade to 12.10 and when I click the upgrade button, it tells me that 12.10 is no longer supported. I click the upgrade button to continue and receive the following message - ' Failed to fetch - Fetching the upgrade failed. There may be a network problem. ' Since I am able to post this question to Launchpad, there is obviously no problem with my network. I have deleted Update manager and reinstalled through the software centre. The problem still exists. What do I do now? Is there a terminal command I can use to bypass Update manager?

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N1ck 7h0m4d4k15
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Best N1ck 7h0m4d4k15 (nicktux) said : 		#1

Hello,

update manager on LTS releases is configured by default to upgrade only to a new LTS release.
Apparently, you have changed this configuration and update manager now is searching for a non-LTS release.
Ubuntu 12.10 is indeed an EOL version (End Of Life) and for that you cannot update to this version.

I would suggest to configure update manager to searching for the next LTS release. You can do this by following instructions below:

1) Open the terminal
2) execute this command:

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

find the string "Prompt=normal" and change it to "Prompt=lts".

3) save the document
4) update the sources list with following command:

    sudo apt-get update

Now check what release is available to upgrading to:

    do-release-upgrade -c

it should return the current LTS release (Ubuntu 14.04).

Also, if you open the update manager GUI program you should see a message indicating that a new release is available.

If you don't see this message , logout-login or reboot the system.

Regards
NickTh

P.S. Don't forget to mark the question as [SOLVED], when done.

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Ed Raicevic (raicevic) said : 		#2

NickTh... Thank you for all your help. Your instructions were clear and concise. They worked perfectly. I have included the results from the last command. You have solved my problem. Again, Thank you.
Ed R.

ed@ed-GN696AA-ABA-a6202n:~$ do-release-upgrade -c
Checking for a new Ubuntu release
New release '14.04.3 LTS' available.
Run 'do-release-upgrade' to upgrade to it.

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Ed Raicevic (raicevic) said : 		#3

Thanks NickTh , that solved my question.