Here is the what caused the error: Setting up tasksel (2.70ubuntu5) ... No protocol specified Gtk-WARNING **: cannot open display: :0.0 at /usr/share/perl5/Debconf/FrontEnd/Gnome.pm line 60. dpkg: error processing tasksel (--configure): subprocess post-installation script returned error exit status 1
It looks like for some reason debconf can not connect to your display and fails instead of falling back to a frontend like "dialog". I reassign. ** Changed in: debconf (Ubuntu) Sourcepackagename: update-manager => debconf Importance: Undecided => Medium Status: Incomplete => Confirmed ** Summary changed: - package update-manager 1:0.87.24 failed to install/upgrade: ErrorMessage: SystemError in cache.commit(): E:Sub-process /usr/bin/dpkg returned an error code (1) + upgrade fails if gnome debconf frontend can not connect to $DISPLAY -- upgrade fails if gnome debconf frontend can not connect to $DISPLAY https://bugs.launchpad.net/bugs/222365 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs