Public bug reported: Upgrading from Ubuntu 18 to 20 and got this problem, not sure what's wrong.
ProblemType: Package DistroRelease: Ubuntu 20.04 Package: mailman 1:2.1.29-1ubuntu3.1 ProcVersionSignature: Ubuntu 4.15.0-169.177-generic 4.15.18 Uname: Linux 4.15.0-169-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.21 Architecture: amd64 CasperMD5CheckResult: skip Date: Wed Feb 23 04:18:08 2022 ErrorMessage: installed mailman package post-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2022-02-19 (3 days ago) InstallationMedia: Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2 PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4 RelatedPackageVersions: dpkg 1.19.7ubuntu3 apt 2.0.6 SourcePackage: mailman Title: package mailman 1:2.1.29-1ubuntu3.1 failed to install/upgrade: installed mailman package post-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to focal on 2022-02-23 (0 days ago) ** Affects: mailman (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package focal need-duplicate-check -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1961870 Title: package mailman 1:2.1.29-1ubuntu3.1 failed to install/upgrade: installed mailman package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mailman/+bug/1961870/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs