arduino-mighty-1284p software package provides Platform files for Arduino to run on ATmega1284P, 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 arduino-mighty-1284p
arduino-mighty-1284p is installed in your system.
Make ensure the arduino-mighty-1284p package were installed using the commands given below,
$ sudo dpkg-query -l | grep arduino-mighty-1284p *
You will get with arduino-mighty-1284p package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Electronics |
| Package | arduino-mighty-1284p |
| Version | 0~svn20130430-1 |
| Description | Platform files for Arduino to run on ATmega1284P |
| Sub Section | Electronics |