I see the same issue: DistroRelease: Linux Mint 19 Tara
Setting up ubuntu-advantage-tools (27.0.2~18.04.1) ... /var/lib/dpkg/info/ubuntu-advantage-tools.postinst: 5: .: Can't open /etc/os-release dpkg: error processing package ubuntu-advantage-tools (--configure): installed ubuntu-advantage-tools package post-installation script subprocess returned error exit status 2 Errors were encountered while processing: ubuntu-advantage-tools E: Sub-process /usr/bin/dpkg returned an error code (1) And to answer Andreas, there is no /etc/os-release on my system: $ ls -la /etc/os-release ls: cannot access '/etc/os-release': No such file or directory -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1898928 Title: package ubuntu-advantage-tools 19.6~ubuntu14.04.4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-advantage-tools/+bug/1898928/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
