The error in your logs is: dpkg: dependency problems prevent processing triggers for plymouth-theme-ubuntu-text: plymouth-theme-ubuntu-text depends on lsb-release; however: Package lsb-release is not configured yet.
And before this: Unpacking lsb-release (9.20160110ubuntu0.2) over (9.20160110) ... AptOrdering.txt claims that lsb-release is supposed to be configured before plymouth-theme-ubuntu-text is configured. So this is a problem with apt's upgrade ordering in the face of dpkg triggers. ** Package changed: plymouth (Ubuntu) => apt (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690881 Title: package plymouth-theme-ubuntu-text 0.9.2-3ubuntu13 failed to install/upgrade: dependency problems - leaving triggers unprocessed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1690881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs