FreeNAS become TrueNAS CORE in 2019. And TrueNAS SCALE was added as a new side project.

Programming language: Python
License: GNU General Public License v3.0 only
Tags: Server     Storage     Self-hosted     Self-hosting Solutions     Docker    

TrueNAS CORE & TrueNAS SCALE alternatives and similar software solutions

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A build framework for TrueNAS SCALE.

Found an issue in the build for SCALE? Please report it on our Jira bugtracker.


  • Debian 10 or later (VM or Bare-Metal)
  • 16GB of RAM
  • At least 15GB of free disk space

In addition to the host, you will want to pre-install the following packages:

  • build-essential
  • debootstrap
  • libjson-perl
  • git
  • python3-pip
  • python3-venv
  • squashfs-tools
  • rsync
  • unzip

% sudo apt install build-essential debootstrap git python3-pip python3-venv squashfs-tools unzip libjson-perl rsync


After the pre-requistes are installed, simply run "make" (as root or sudo) to perform a complete build which performs the following steps:

make checkout

Pulls in the latest target source repos from online. Re-run to update to latest sources at any time.

make packages

Builds all the *.deb packages from the checked out source repos and stages them for further stages. Re-running it will perform an incremental build, only re-building packages which have changed sources in source/.

make update

Builds the stand-alone update file, used for online/offline updating or building ISO images.

make iso

Builds the ISO image for fresh installation.

make clean

Cleans up all the temporary files and returns to original state.


It is possible using make and environment variables to override which source repos get checked out during "make checkout" phase.

TRUENAS_BRANCH_OVERRIDE - Can be used to override all source repos at once

_OVERRIDE - Can override specific repos, I.E. debootstrap_OVERRIDE="master"