Public bug reported: Reported this quite a few times. Seems post installation scripts cannot be started or are not present. It's annoying, because every time 'apt update' or 'apt upgrade' is started this problem is reported.
ProblemType: Package DistroRelease: Ubuntu 20.04 Package: openjdk-14-jre-headless:amd64 14.0.2+12-1~20.04 ProcVersionSignature: Ubuntu 5.4.0-47.51-generic 5.4.55 Uname: Linux 5.4.0-47-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 CasperMD5CheckResult: skip Date: Sat Dec 5 14:44:52 2020 DuplicateSignature: package:openjdk-14-jre-headless:amd64:14.0.2+12-1~20.04 Setting up openjdk-14-jre-headless:amd64 (14.0.2+12-1~20.04) ... update-alternatives: error: alternative keytool can't be master: it is a slave of jar dpkg: error processing package openjdk-14-jre-headless:amd64 (--configure): installed openjdk-14-jre-headless:amd64 package post-installation script subprocess returned error exit status 2 ErrorMessage: installed openjdk-14-jre-headless:amd64 package post-installation script subprocess returned error exit status 2 InstallationDate: Installed on 2017-09-11 (1180 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) Python3Details: /usr/bin/python3.8, Python 3.8.5, 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 2.0.2ubuntu0.1 SourcePackage: openjdk-14 Title: package openjdk-14-jre-headless:amd64 14.0.2+12-1~20.04 failed to install/upgrade: installed openjdk-14-jre-headless:amd64 package post-installation script subprocess returned error exit status 2 UpgradeStatus: Upgraded to focal on 2020-08-12 (114 days ago) ** Affects: openjdk-14 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1906936 Title: package openjdk-14-jre-headless:amd64 14.0.2+12-1~20.04 failed to install/upgrade: installed openjdk-14-jre-headless:amd64 package post- installation script subprocess returned error exit status 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openjdk-14/+bug/1906936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs