Ubuntu – Upgrade to 12.10 from 12.04 not available in update manager

12.0412.10update-managerupgrade

My update manager does not give me the option to upgrade to Ubuntu 12.10. That is, the "New distribution release '12.10' is available. Click Upgrade and follow the on-screen instructions" section is not shown.

I had the same problem upgrading to 12.04. Spent hours trying to upgrade the system, got lucky somehow, don’t definitively know how.

What I have done,

used Synaptic to clear package cache.
reloaded package list and upgraded all packages.
checked that ubuntu-standard and ubuntu-desktop packages are
installed.
checked that the "notify me of new version" setting in update-manager is set to "all new versions"
update manager reports there are "no new updates"
sudo do-release-upgrade -d reports no release available
running update-manager -d does not help.
cat /etc/lsb-release output is: DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS

Best Answer

Open "Update Manager" > click on "Setting" (bottom left) > change "Notify me of a new Ubuntu version" from "for long term support version" to "for any new version" > close

the again "check" for updates.

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Related Solutions

Ubuntu – How to suppress the “New release ‘12.10’ available” message

The other answers aren't quite right, but combining them put me on the right track.

/etc/update-manager/release-upgrades controls what updates you'll be notified about. /usr/lib/update-manager/release-upgrade-motd generates the "update available" message. The problem is that release-upgrade-motd caches the message, which means that once it's been generated, changing /etc/update-manager/release-upgrades doesn't get rid of the message.

So the answer is:

Tell Update Manager what releases you want to be notified about.
sudo rm /var/lib/update-notifier/release-upgrade-available to get rid of the cached message.

Note: For version 13.04 (and later), the path has changed. So point 2. to get rid of the cached message is now:

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

Ubuntu – 12.04 to 12.10 update is not shown

This is how it should work(tested myself):

Open Update Manager
Click "Settings"
Change "Notify me of a new Ubuntu version:" to "For any new version"
Enter Admin password when asked
Click "Close"
Click "Check"

That should force the check for Ubuntu 12.10. If that still doesn't work you can do the less pretty way and use terminal.

This method is usually used for Servers since they lack a GUI but it works for Desktop releases too.

Just open a Terminal and enter these commands:

sudo apt-get update
sudo apt-get install update-manager-core
sudo do-release-upgrade

That should do it. Although I always recommend making a Backup of any important data. I actually go the extra Mile and Image my entire HDD using dd so if anything goes wrong I can restore to perfection. I then use testdisk to extract individual partitions in order to mount and transfer data from.

Best Answer

Related Solutions

Ubuntu – How to suppress the “New release ‘12.10’ available” message

Ubuntu – 12.04 to 12.10 update is not shown

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