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I am running lucid, and would like to upgrade to precise. I have changed the settings in Update Manager to "Long term support releases only", but I only get the option "New Ubuntu release '10.10' is available". I thought it was possible to upgrade directly from one LTS to the next (i.e. go direct from lucid to precise). Is that right, or would I have to go through all the intermediate versions?

To add some extra details, running "lsb_release -a" gives: No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 10.04.4 LTS Release: 10.04 Codename: lucid

In /etc/update-manager/release-upgrades I have Prompt=lts

Running do-release-upgrade gives the output: Checking for a new ubuntu release Failed Upgrade tool signature Failed Upgrade tool Done downloading
Failed to fetch Fetching the upgrade failed. There may be a network problem.


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1 Answer 1

In shell, this is just a simple apt-get command. First update the lists and upgrade any packages:

sudo apt-get update
sudo apt-get upgrade

And then upgrade your distribution:

sudo apt-get dist-upgrade

(Might take a while!)

If that doesn't work you need to use update manager:

sudo aptitude install update-manager-core
sudo do-release-upgrade

Can you confirm you're on Lucid:

lsb_release -a

Should report four lines with 10.04 and lucid in there. Next thing is you need upgrade manager to move to the next LTS, not 10.10 which you mention above... vi /etc/update-manager/release-upgrades


Try and run do-release-upgrade again, if you could paste out the actual fail message (in your Q) it'd be helpful too.

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I tried this, and get the result: Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. –  Carlos Perez Nov 22 '13 at 15:28
Thanks for your efforts @Rudu. Using update manager at least gives a different error message, now it says: Failed Upgrade tool signature Failed Upgrade tool Done downloading Failed to fetch Fetching the upgrade failed. There may be a network problem. I know there is no network problem, so does this give ny clue as to what the real problem is? –  Carlos Perez Nov 23 '13 at 16:21
No, it's maddening. Everything looks perfect, but the GUI upgrader only offers me an upgrade to 10.10, while do-release-upgrade gives "Failed upgrade tool signature, failled upgrade tool". –  Carlos Perez Nov 26 '13 at 10:24
@CarlosPerez did you confirm you're on lucid with lsb_release? The only reason I can think this is failing is you're not on 10.04 but actually on 10.10 which doesn't support upgrade to 12.04 –  Rudu Nov 26 '13 at 15:19
Yes, "lsb_release -a" reports "Ubuntu 10.04.4 LTS", "Release: 10.04", "Codename: lucid". So unless it is lying to me, I definitely seem to be running lucid! –  Carlos Perez Nov 28 '13 at 16:58

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