dracut-network software package provides Low-level tool for generating an initramfs image, 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 dracut-network
dracut-network is installed in your system.
Make ensure the dracut-network package were installed using the commands given below,
$ sudo dpkg-query -l | grep dracut-network *
You will get with dracut-network package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Utilities |
| Package | dracut-network |
| Version | 044+3-3 |
| Description | Low-level tool for generating an initramfs image |
| Sub Section | Utils |