Oh, examining DuplicateSignature attachment I now realize the source of the issue. In my server I'm using redis as session storage for PHP and thus have disabled completely systemd service to cleanup php sessions on file.
Maybe the failure to load php session clean systemd timer should not cause anything fatal during upgrade process, no? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1737649 Title: package php-common 1:49 failed to install/upgrade: subprocess new pre- removal script returned error exit status 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/php-defaults/+bug/1737649/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs