Can’t do a release upgrade from 14.04: It was not possible to authenticate some packages – Ask Ubuntu

Jovan Stosic March 17, 2017

Trying to do a release upgrade on Ubuntu 14.04 with:

do-release-upgrade

I get the following error:

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.

libxkbcommon-x11-0

What is this about? I did

sudo apt-get update && sudo apt-get dist-upgrade

before and deactivated all ppas. What else could I do?

Answer:
run this command
sudo sh -c 'printf "[Distro]\nAllowUnauthenticated=yes" > /etc/update-manager/release-upgrades.d/unauth.cfg'

this will fix your issue

and after the upgrade run sudo rm /etc/update-manager/release-upgrades.d/unauth.cfg

Source: Can’t do a release upgrade from 14.04: It was not possible to authenticate some packages – Ask Ubuntu

Can’t do a release upgrade from 14.04: It was not possible to authenticate some packages – Ask Ubuntu was last modified: July 13th, 2017 by Jovan Stosic