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I cannot find reference to the new release (12.04) in the update manager (it was there, now no longer), while

mark@Athene:~$ sudo do-release-upgrade
Checking for a new ubuntu release
No new release found

although I am running 11.10.

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  1. Check your system with cat /etc/issue. Is it really 11.10?
  2. Use Update Manager: update-manager -d.
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Try in terminal:

sudo apt-get update and then : sudo apt-get upgrade

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Enter the Update Manager , select Settings and in the Updates make sure to select Notify me of a new Ubuntu version: For any new version.

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This should work

open terminal by pressing ctrl+alt+t


sudo do-upgrade-release -d
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