Public bug reported: ~$ sudo 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://archive.ubuntu.com/ubuntu bionic InRelease Hit http://archive.ubuntu.com/ubuntu bionic-updates InRelease Hit http://archive.ubuntu.com/ubuntu bionic-backports InRelease Hit http://archive.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 Hit http://archive.ubuntu.com/ubuntu focal InRelease Hit http://archive.ubuntu.com/ubuntu focal-updates InRelease Hit http://archive.ubuntu.com/ubuntu focal-backports InRelease Hit http://archive.ubuntu.com/ubuntu focal-security InRelease Fetched 0 B 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 caused by: * Upgrading to a pre-release version of Ubuntu This is most likely a transient problem, please try again later. 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 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.37 ProcVersionSignature: Ubuntu 4.15.0-109.110-generic 4.15.18 Uname: Linux 4.15.0-109-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: XFCE Date: Wed Jul 8 13:26:03 2020 InstallationDate: Installed on 2018-02-19 (869 days ago) InstallationMedia: Xubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to bionic on 2020-07-08 (0 days ago) ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic dist-upgrade ** Attachment added: "dist-upgrade-logs.zip" https://bugs.launchpad.net/bugs/1886748/+attachment/5390671/+files/dist-upgrade-logs.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886748 Title: upgrade from 18.04 to 20.04 fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1886748/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs