Public bug reported:
1.) I installed a fresh copy of ubuntu-mate-14.04-2-LTS-desktop-amd64.iso in a
virtual machine.
2.) sudo apt-get update && sudo aptget dist-upgrade
3.) disabled /etc/apt/sources.list.d/extra-ppas.list by just commenting out all
the deb lines.
4.) sudo do-release-upgrade -d
5.) Output -- shortened:
authenticate 'xenial.tar.gz' against 'xenial.tar.gz.gpg' ^M
extracting 'xenial.tar.gz'^M
^M
Reading cache^M
^M
Checking package manager^M
...
99% [http://ie.archive.ubuntu.com trusty/universe i386 Packages 31.7 MB]
...
Calculating the changes
Error authenticating some packages
^M
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.
module-init-tools
Restoring original system state
Aborting
6.) module-init-tools is supposed to be a transitional packages, and
should be removed after installlation. While attempting to do this,
module-init-tools whould remove have of ubuntu mate. So I did not do it,
but decided to file a bug instead.
7.) lsb_release -rd
Description: Ubuntu 14.04.4 LTS
Release: 14.04
8.) package in question:
ubuntu-release-upgrader-core: /usr/bin/do-release-upgrade, version 1:0.220.8
9.) More information when needed; I don't know what you want from me :(
** Affects: update-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: dist-upgrade
** Tags added: dist-upgrade
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https://bugs.launchpad.net/bugs/1550922
Title:
dist-upgrade from Ubuntu Mate 14.04.4 LTS to 16.04 LTS (Beta1) fails
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