[Bug 1570310] [NEW] package systemd 229-4ubuntu4 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 2

Public bug reported: I was upgrading from 15.10 to 16.04 when this error occur. ProblemType: Package DistroRelease: Ubuntu 16.04 Package: systemd 229-4ubuntu4 ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6 Uname: Linux 4.4.0-18-generic x86_64 ApportVersion: 2.20.1-0ubuntu1 Architecture: a

[Bug 1298828] [NEW] Upgrade from 13.10 to 14.04 failed.

Public bug reported: while running dist upgrade, it stops at step two with a error message "An unresolavable problem occured while calculating the upgrade". ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: ubuntu-release-upgrader-core 1:0.205.5 ProcVersionSignature: Ubuntu 3.11.0-18.32-gener