cdebconf-udeb software package provides Debian Configuration Management System (C-implementation), you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install cdebconf-udeb
cdebconf-udeb is installed in your system.
Make ensure the cdebconf-udeb package were installed using the commands given below,
$ sudo dpkg-query -l | grep cdebconf-udeb *
You will get with cdebconf-udeb package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | debian-installer udeb packages |
| Package | cdebconf-udeb |
| Version | 0.198ubuntu1 |
| Description | Debian Configuration Management System (C-implementation) |
| Sub Section | Debian-installer |