I went through the LTS upgrade on some Ubuntu Server machines w/o this error from 12.04 to 14.04. Going through the LTS upgrade on the first of the same systems from 14.04 to 16.04 I too am seeing this error.
I believe daemontools-run is used by djbdns, which our systems run. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1617691 Title: do-release-upgrade daemontools-run fatal error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1617691/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs