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Last active February 8, 2026 15:05 — forked from gangefors/Install FreeNAS SCALE on a partition and create a mirror.md
How to install TrueNAS SCALE on a partition and use the space left for apps

Install TrueNAS SCALE on a partition instead of the full disk

The TrueNAS installer doesn't have a way to use anything less than the full device. This is usually a waste of resources when installing to a modern NVMe which is usually several hundred of GB. TrueNAS SCALE will use only a few GB for its system files so installing to a 16GB partition would be helpful.

Note

Tested with TrueNAS 25.10

The easiest way to solve this is to modify the installer script before starting the installation process.

  1. Boot TrueNAS Scale installer from USB stick/ISO