# Docker Build Image

**URL:** <https://community.particle.io/t/docker-build-image/7936>\
**Category:** Firmware\
**Created:** [November 8, 2014, 8:58pm UTC](https://community.particle.io/t/docker-build-image/7936 "2014-11-08T20:58:31Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![bko](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/bko/32/20704_2.png) [@bko](https://community.particle.io/u/bko)\
**Post date:** [January 18, 2015, 10:57pm UTC](https://community.particle.io/t/docker-build-image/7936/6 "2015-01-18T22:57:11Z")

</div>

If you are already using dfu-util, you can just download the ARM gcc toolchain and compile locally and then use dfu-util to flash the code to your core. If you can type “make all” in a shell, you can do it and here’s how:

> **[The Spark Core Firmware](https://community.particle.io/t/the-spark-core-firmware/532)**
>
> The Spark Core Firmware This firmware depends on two other libraries: the Spark Common Library and the Spark Communication Library Download and Install Dependencies Download and Build Repositories Edit and Rebuild Flash It! 1. Download and Install...

Note that the library format with three repos will be changing shortly but I believe this is still the current way.

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_[View the full topic](https://community.particle.io/t/docker-build-image/7936)._