Download Externum OS

Get started with the most secure and efficient Linux-based operating system.

Choose Your Version

Externum OS Desktop

Full-featured desktop environment with all the tools you need for daily computing.

  • System Requirements: 2GHz dual-core processor
  • RAM: 4GB minimum (8GB recommended)
  • Storage: 25GB available space
  • Size: 2.8GB
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Externum OS Lite

Optimized for older hardware and systems with limited resources.

  • System Requirements: 1GHz processor
  • RAM: 2GB minimum
  • Storage: 15GB available space
  • Size: 1.6GB
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Externum OS Server

Designed for servers with enhanced security and performance optimizations.

  • System Requirements: 2GHz quad-core processor
  • RAM: 4GB minimum (16GB recommended)
  • Storage: 20GB available space
  • Size: 1.2GB
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Verify Your Download

To ensure the integrity of your download, we recommend verifying the checksums of the downloaded ISO files.

1

Download the Checksum File

Download the SHA256SUMS file containing the checksums for all our ISO files.

Download SHA256SUMS
2

Verify the Checksum

Use the following commands to verify the integrity of your downloaded ISO:

sha256sum -c SHA256SUMS
3

Create Installation Media

Create a bootable USB drive or DVD using the verified ISO file.

View Installation Guide

Download Mirrors

If you're experiencing slow download speeds, try one of our mirror servers located around the world.

North America

Europe

Asia Pacific

Previous Versions

Looking for an older version of Externum OS? You can find our previous releases below.

Version Release Date Support Status Download
Externum OS 0.9 March 15, 2025 Supported Download
Externum OS 0.8 December 10, 2025 Supported Download
Externum OS 0.7 August 22, 2025 End of Life Download
Externum OS 0.6 May 5, 2025 End of Life Download

Need Help Getting Started?

Our comprehensive documentation will guide you through the installation process and help you get the most out of Externum OS.

View Documentation