linux-firmware-nonfree software package provides Non-free firmware for Linux kernel drivers, 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 linux-firmware-nonfree
linux-firmware-nonfree is installed in your system.
Make ensure the linux-firmware-nonfree package were installed using the commands given below,
$ sudo dpkg-query -l | grep linux-firmware-nonfree *
You will get with linux-firmware-nonfree package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Kernels |
| Package | linux-firmware-nonfree |
| Version | 1.14ubuntu1 |
| Description | Non-free firmware for Linux kernel drivers |
| Sub Section | Kernels |