This is actually a bug in package ucf, identical to Debian bug 574266 (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=574266#18), which was recently fixed with a one-line patch.
The code that tested for terminal availability would fail if the debconf ncurses interface (whiptail) was used, and the program was /not/ run under X. So when upgrading from the console or via ssh (without the -x option), it would always generate this error message, For additional details, see the Debian bug report, which includes a patch. ** Bug watch added: Debian Bug tracker #574266 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=574266 ** Package changed: update-manager (Ubuntu) => ucf (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/768614 Title: No terminal, and no DISPLAY set, can't fork shell. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ucf/+bug/768614/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
