Oct 272015

So you ran do-release-upgrade but it didn’t work?


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

Some useful logs are located under /var/log/dist-upgrade/ and I bet you are going to find there something along these lines:

Error authenticating some packages

It was not possible to authenticate some packages. This may be a transient network problem. You may want to try again later. See below for a list of unauthenticated packages


Temporary workaround, create file


filled with the following


Now your sudo do-release-upgrade should run OK

Make sure to remove this file once upgrade process is completed.

And if this helped don’t forget to leave a comment 😉


  14 Responses to “upgrading Ubuntu 10.04 to 12.04 error authenticating some packages”

  1. Thank you guy 🙂

  2. great !

  3. Thank you – I was getting the same “Error authenticating some packages” problem. Following your procedures allowed us to upgrade a critical server successfully.

  4. Thanks. This helped with CVE-2015-7547 critical vulnerability

  5. […] I found a fix at http://sysadm.mielnet.pl/upgrading-ubuntu-10-04-to-12-04-error-authenticating-some-packages/: […]

  6. Thanks for this. It has brought 3 hours of head scratching to an end!

    I was seeing the following message: “ERROR Unauthenticated packages found ” in /var/log/dist-upgrade/main.log after unsuccessfully trying a do-release-upgrade on an EOL lucid box.

  7. thanks doggggggggggg been fighting with this old ass mail server for a minute you da man

  8. Thanks man! Upgrade running…


  9. Life saving information there – thanks!

  10. thank you!

  11. Thank you very much! I was clueless and now I finally could upgrade my Ubuntu from 10.04 to 12.04

  12. worked a treat! Thank you .. time will tell ie once the relaease upgrade is complete, if there are any major flaws introduced by this. Fingers crossed!

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