dracut software package provides A new initramfs infrastructure, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install dracut
dracut is installed in your system.
Make ensure the dracut package were installed using the commands given below,
$ sudo dpkg-query -l | grep dracut *
You will get with dracut package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Utilities |
| Package | dracut |
| Version | 027-1 |
| Description | A new initramfs infrastructure |
| Sub Section | Utils |