Given that the script contains only automatically inserted code from debhelper and worked fine on retry, I don't think this problem is caused by sabnzbdplus. You failed to provide an answer as to the system load at the time, so I'm going to have to assume this is the oom killer or similar mechanisms at work.
Closing for now, feel free to reopen if you find a way to reproduce. ** Changed in: sabnzbdplus (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1731422 Title: package sabnzbdplus 1.1.1+dfsg-1 failed to install/upgrade: subprocess installed post-installation script was killed by signal (Terminated) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sabnzbdplus/+bug/1731422/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs