Public bug reported: I'm just trying to upgrade from to 20.04. It is the guest OS in vmware workstaion running on win7-64. I also tried installing a FRESH Ubuntu Mate 18.04 as the guest in VirtualBox running on Mate 20.04 and the same error happened when I ran do-release-upgrade.
root@VM:~# lsb_release -rd Description: Ubuntu 18.04.4 LTS Release: 18.04 root@VM:~# apt update Hit:1 https://download.mono-project.com/repo/ubuntu stable-bionic InRelease Hit:2 http://us.archive.ubuntu.com/ubuntu bionic InRelease Hit:3 http://us.archive.ubuntu.com/ubuntu bionic-updates InRelease Hit:4 http://security.ubuntu.com/ubuntu bionic-security InRelease Hit:5 http://us.archive.ubuntu.com/ubuntu bionic-backports InRelease Reading package lists... Done Building dependency tree Reading state information... Done All packages are up to date. root@VM:~# apt --fix-broken install Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. root@VM:~# root@VM:~# apt upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. root@VM:~# root@VM:~# root@VM:~# do-release-upgrade Checking for a new Ubuntu release There is no development version of an LTS available. To upgrade to the latest non-LTS develoment release set Prompt=normal in /etc/update-manager/release-upgrades. root@VM:~# do-release-upgrade -d Checking for a new Ubuntu release Get:1 Upgrade tool signature [1,554 B] Get:2 Upgrade tool [1,342 kB] Fetched 1,343 kB in 0s (0 B/s) authenticate 'focal.tar.gz' against 'focal.tar.gz.gpg' extracting 'focal.tar.gz' Reading cache Checking package manager Reading package lists... Done Building dependency tree Reading state information... Done Hit http://us.archive.ubuntu.com/ubuntu bionic InRelease Hit https://download.mono-project.com/repo/ubuntu stable-bionic InRelease Hit http://us.archive.ubuntu.com/ubuntu bionic-updates InRelease Hit http://us.archive.ubuntu.com/ubuntu bionic-backports InRelease Hit http://security.ubuntu.com/ubuntu bionic-security 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 focal InRelease [265 kB] Get:2 http://security.ubuntu.com/ubuntu focal-security InRelease [107 kB] Get:3 http://us.archive.ubuntu.com/ubuntu focal-updates InRelease [107 kB] Get:4 http://us.archive.ubuntu.com/ubuntu focal-backports InRelease [98.3 kB] Get:5 http://us.archive.ubuntu.com/ubuntu focal/main i386 Packages [718 kB] Get:6 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages [970 kB] Get:7 http://us.archive.ubuntu.com/ubuntu focal/main Translation-en [506 kB] Get:8 http://us.archive.ubuntu.com/ubuntu focal/main amd64 c-n-f Metadata [29.5 kB] Get:9 http://us.archive.ubuntu.com/ubuntu focal/universe i386 Packages [4,642 kB] Get:10 http://security.ubuntu.com/ubuntu focal-security/main i386 Packages [27.4 kB] Get:11 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 Packages [8,628 kB] Get:12 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages [75.8 kB] Get:13 http://us.archive.ubuntu.com/ubuntu focal/universe Translation-en [5,124 kB] Get:14 http://security.ubuntu.com/ubuntu focal-security/main Translation-en [29.6 kB] Get:15 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 c-n-f Metadata [265 kB] Get:16 http://security.ubuntu.com/ubuntu focal-security/main amd64 c-n-f Metadata [2,360 B] Get:17 http://security.ubuntu.com/ubuntu focal-security/universe amd64 Packages [30.0 kB] Get:18 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [127 kB] Get:19 http://us.archive.ubuntu.com/ubuntu focal-updates/main i386 Packages [60.5 kB] Get:20 http://us.archive.ubuntu.com/ubuntu focal-updates/main Translation-en [48.1 kB] Get:21 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64 c-n-f Metadata [3,160 B] Get:22 http://us.archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [70.1 kB] Get:23 http://us.archive.ubuntu.com/ubuntu focal-updates/universe i386 Packages [27.4 kB] Get:24 http://us.archive.ubuntu.com/ubuntu focal-updates/universe Translation-en [29.8 kB] Get:25 http://us.archive.ubuntu.com/ubuntu focal-updates/universe amd64 c-n-f Metadata [2,476 B] Get:26 http://us.archive.ubuntu.com/ubuntu focal-backports/main amd64 c-n-f Metadata [112 B] Get:27 http://us.archive.ubuntu.com/ubuntu focal-backports/universe amd64 Packages [2,792 B] Get:28 http://us.archive.ubuntu.com/ubuntu focal-backports/universe i386 Packages [1,956 B] Get:29 http://us.archive.ubuntu.com/ubuntu focal-backports/universe Translation-en [1,280 B] Get:30 http://us.archive.ubuntu.com/ubuntu focal-backports/universe amd64 c-n-f Metadata [188 B] Get:31 http://security.ubuntu.com/ubuntu focal-security/universe i386 Packages [8,928 B] Get:32 http://security.ubuntu.com/ubuntu focal-security/universe Translation-en [13.9 kB] Get:33 http://security.ubuntu.com/ubuntu focal-security/universe amd64 c-n-f Metadata [1,160 B] Fetched 22.0 MB in 0s (0 B/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 was likely caused by: * Unofficial software packages not provided by Ubuntu Please use the tool 'ppa-purge' from the ppa-purge package to remove software from a Launchpad PPA and try the upgrade again. If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If you want to investigate this yourself the log files in '/var/log/dist-upgrade' will contain details about the upgrade. Specifically, look at 'main.log' and 'apt.log'. Restoring original system state Aborting Reading package lists... Done Building dependency tree Reading state information... Done root@VM:~# ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.37 ProcVersionSignature: Ubuntu 5.3.0-53.47~18.04.1-generic 5.3.18 Uname: Linux 5.3.0-53-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.14 Architecture: amd64 CrashDB: ubuntu Date: Thu May 21 21:25:46 2020 InstallationDate: Installed on 2019-10-22 (213 days ago) InstallationMedia: Ubuntu-MATE 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) PackageArchitecture: all ProcEnviron: LANGUAGE=en_US TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to bionic on 2020-05-22 (0 days ago) ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic dist-upgrade -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1880060 Title: do-release-upgrade -d results in "An unresolvable problem occurred while calculating the upgrade" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1880060/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
