Two New FreeBSD-Based NAS Systems Replace Discontinued TrueNAS Core
FreeCORE and BSDnas, based on FreeBSD 15, carry forward the legacy of iXsystems' discontinued TrueNAS Core.
1Growing Interest in FreeBSD-Based NAS Systems
FreeBSD's reputation as a stable server OS and its native ZFS integration make it ideal for storage solutions. However, Linux's popularity creates a steeper learning curve for FreeBSD. The cancellation of TrueNAS Core has prompted independent developers to fill the void with new alternatives.
2FreeCORE: The Unofficial Successor to TrueNAS Core
Released on August 27, 2026, FreeCORE 15.0-U1 continues TrueNAS Core 13.3 on a FreeBSD 15 base. The project enables direct upgrades from existing TrueNAS systems. The developer confirms this is an independent fork they've been working on since January, with 50 test builds before release.
3BSDnas: Memory-Efficient Alternative
Announced on August 19, 2026, BSDnas boots with just 2GB RAM and runs smoothly on 4GB. This contrasts with TrueNAS SCALE's 8GB minimum requirement. The project migrated TrueNAS Core 13.3 code to FreeBSD 15 after removing iXsystems dependencies.
4The Significance of ZFS Integration
FreeBSD's kernel-level ZFS implementation offers performance advantages over Linux's module-based approach. The separation between ZFS ARC and Linux Page Cache particularly affects memory-constrained systems. This technical difference remains crucial for legacy TrueNAS users with 8GB RAM.
5iXsystems' Shift to Linux and Its Impact
After discontinuing TrueNAS Core in 2024, iXsystems focused on Debian-based TrueNAS SCALE. This decision disappointed FreeBSD loyalists. While the company assured users wouldn't be stranded, community-driven alternatives quickly emerged to address the gap.
6The zVault Experiment and Lessons Learned
The 2025 zVault project successfully cleaned TrueNAS code but failed to transition to FreeBSD 14. Warnings about its stability appeared on GitHub, and the project became inactive. This experience raised questions about sustainability of independent forks.
7XigmaNAS: The Long-Standing Alternative
Forked from FreeNAS 8 in 2011, XigmaNAS (formerly NAS4Free) still serves users with its FreeBSD 14-based version updated in October 2025. It runs reliably on 6GB RAM. Meanwhile, FreeNAS's original creators developed Debian-based Open Media Vault as another option.
8The Power of Open Source Community
TrueNAS Core's discontinuation demonstrated open source's resilience. Independent developers quickly identified user needs, producing solutions like FreeCORE and BSDnas. The future of FreeBSD-based NAS systems now depends on such community initiatives' success.