I am trying to upgrade from 17.10 to 18.04. This is the output of do-release-upgrade:
sudo do-release-upgrade
Checking for a new Ubuntu release
Your Ubuntu release is not supported anymore.
For upgrade information, please visit:
http://www.ubuntu.com/releaseendoflife
Get:1 Upgrade tool signature [819 B]
Get:2 Upgrade tool [1,258 kB]
Fetched 1,258 kB in 0s (0 B/s)
authenticate 'bionic.tar.gz' against 'bionic.tar.gz.gpg'
extracting 'bionic.tar.gz'
Reading cache
Checking package manager
Reading package lists... Done
Building dependency tree
Reading state information... Done
Ign http://dl.google.com/linux/chrome/deb stable InRelease
Hit http://dl.google.com/linux/chrome/deb stable Release
Hit http://us.archive.ubuntu.com/ubuntu artful InRelease
Hit http://archive.canonical.com/ubuntu artful InRelease
Hit http://security.ubuntu.com/ubuntu artful-security InRelease
Hit http://us.archive.ubuntu.com/ubuntu artful-updates InRelease
Hit http://ppa.launchpad.net/stebbins/handbrake-releases/ubuntu artful InRelease
Hit http://us.archive.ubuntu.com/ubuntu artful-backports InRelease
Hit https://download.sublimetext.com apt/stable/ InRelease
Hit http://ppa.launchpad.net/zanchey/asciinema/ubuntu artful InRelease
Fetched 0 B in 0s (0 B/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
Updating repository information
Third party sources disabled
Some third party entries in your sources.list were disabled. You can
re-enable them after the upgrade with the 'software-properties' tool
or your package manager.
To continue please press [ENTER]
Get:1 http://us.archive.ubuntu.com/ubuntu bionic InRelease [242 kB]
Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]
Get:3 http://archive.canonical.com/ubuntu bionic InRelease [10.2 kB]
Get:4 http://archive.canonical.com/ubuntu bionic/partner i386 Packages [2,300 B]
Get:5 http://archive.canonical.com/ubuntu bionic/partner amd64 Packages [2,304 B]
Get:6 http://archive.canonical.com/ubuntu bionic/partner Translation-en [1,272 B]
Get:7 http://us.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:8 http://security.ubuntu.com/ubuntu bionic-security/main i386 Packages [117 kB]
Get:9 http://us.archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Get:10 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages [1,019 kB]
Get:11 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages [145 kB]
Get:12 http://security.ubuntu.com/ubuntu bionic-security/main Translation-en [56.2 kB]
Get:13 http://security.ubuntu.com/ubuntu bionic-security/main amd64 DEP-11 Metadata [204 B]
Get:14 http://security.ubuntu.com/ubuntu bionic-security/main DEP-11 64x64 Icons [29 B]
Get:15 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 Packages [50.4 kB]
Get:16 http://security.ubuntu.com/ubuntu bionic-security/universe i386 Packages [50.3 kB]
Get:17 http://security.ubuntu.com/ubuntu bionic-security/universe Translation-en [29.0 kB]
Get:18 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 DEP-11 Metadata [5,792 B]
Get:19 http://security.ubuntu.com/ubuntu bionic-security/universe DEP-11 64x64 Icons [8,060 B]
Get:20 http://security.ubuntu.com/ubuntu bionic-security/multiverse i386 Packages [1,604 B]
Get:21 http://security.ubuntu.com/ubuntu bionic-security/multiverse amd64 Packages [1,440 B]
Get:22 http://security.ubuntu.com/ubuntu bionic-security/multiverse Translation-en [996 B]
Get:23 http://us.archive.ubuntu.com/ubuntu bionic/main i386 Packages [1,007 kB]
Get:24 http://us.archive.ubuntu.com/ubuntu bionic/main Translation-en [516 kB]
Get:25 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 DEP-11 Metadata [477 kB]
Get:26 http://us.archive.ubuntu.com/ubuntu bionic/main DEP-11 64x64 Icons [245 kB]
Get:27 http://us.archive.ubuntu.com/ubuntu bionic/restricted amd64 Packages [9,184 B]
Get:28 http://us.archive.ubuntu.com/ubuntu bionic/restricted i386 Packages [9,156 B]
Get:29 http://us.archive.ubuntu.com/ubuntu bionic/restricted Translation-en [3,584 B]
Get:30 http://us.archive.ubuntu.com/ubuntu bionic/universe i386 Packages [8,531 kB]
Get:31 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages [8,570 kB]
Get:32 http://us.archive.ubuntu.com/ubuntu bionic/universe Translation-en [4,941 kB]
Get:33 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 DEP-11 Metadata [3,287 kB]
Get:34 http://us.archive.ubuntu.com/ubuntu bionic/universe DEP-11 64x64 Icons [8,420 kB]
Get:35 http://us.archive.ubuntu.com/ubuntu bionic/multiverse i386 Packages [144 kB]
Get:36 http://us.archive.ubuntu.com/ubuntu bionic/multiverse amd64 Packages [151 kB]
Get:37 http://us.archive.ubuntu.com/ubuntu bionic/multiverse Translation-en [108 kB]
Get:38 http://us.archive.ubuntu.com/ubuntu bionic/multiverse amd64 DEP-11 Metadata [49.7 kB]
Get:39 http://us.archive.ubuntu.com/ubuntu bionic/multiverse DEP-11 64x64 Icons [225 kB]
Get:40 http://us.archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [260 kB]
Get:41 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [288 kB]
Get:42 http://us.archive.ubuntu.com/ubuntu bionic-updates/main Translation-en [109 kB]
Get:43 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 DEP-11 Metadata [138 kB]
Get:44 http://us.archive.ubuntu.com/ubuntu bionic-updates/main DEP-11 64x64 Icons [53.7 kB]
Get:45 http://us.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [160 kB]
Get:46 http://us.archive.ubuntu.com/ubuntu bionic-updates/universe i386 Packages [160 kB]
Get:47 http://us.archive.ubuntu.com/ubuntu bionic-updates/universe Translation-en [73.1 kB]
Get:48 http://us.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 DEP-11 Metadata [152 kB]
Get:49 http://us.archive.ubuntu.com/ubuntu bionic-updates/universe DEP-11 64x64 Icons [248 kB]
Get:50 http://us.archive.ubuntu.com/ubuntu bionic-updates/multiverse i386 Packages [3,924 B]
Get:51 http://us.archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 Packages [3,772 B]
Get:52 http://us.archive.ubuntu.com/ubuntu bionic-updates/multiverse Translation-en [2,376 B]
Get:53 http://us.archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 DEP-11 Metadata [2,464 B]
Get:54 http://us.archive.ubuntu.com/ubuntu bionic-updates/multiverse DEP-11 64x64 Icons [2,638 B]
Get:55 http://us.archive.ubuntu.com/ubuntu bionic-backports/universe amd64 Packages [2,704 B]
Get:56 http://us.archive.ubuntu.com/ubuntu bionic-backports/universe i386 Packages [2,704 B]
Get:57 http://us.archive.ubuntu.com/ubuntu bionic-backports/universe Translation-en [1,136 B]
Get:58 http://us.archive.ubuntu.com/ubuntu bionic-backports/universe amd64 DEP-11 Metadata [5,096 B]
Get:59 http://us.archive.ubuntu.com/ubuntu bionic-backports/universe DEP-11 64x64 Icons [1,789 B]
Fetched 40.4 MB in 6s (6,608 kB/s)
Checking package manager
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating the changes
Calculating the changes
Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu
If none of this applies, then please report this bug using the
command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.
Restoring original system state
Aborting
Reading package lists... Done
Building dependency tree
Reading state information... Done
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: ubuntu-release-upgrader-core 1:17.10.11
Uname: Linux 4.13.10-041310-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.7-0ubuntu3.9
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: GNOME
Date: Wed Aug 15 13:41:04 2018
InstallationDate: Installed on 2017-02-06 (555 days ago)
InstallationMedia: Ubuntu-GNOME 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160720)
PackageArchitecture: all
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to artful on 2018-08-15 (0 days ago)
