125176 [2026 Edition]
While this specific automation is a popular suggestion among the community ( TrueNAS Community Forums ), it is not always enabled by default in every version.
TrueNAS already utilizes "Boot Environments," which act similarly to snapshots but require a reboot to switch between different OS versions. 🚀 Recommended Next Steps 125176
This request proposes a safety mechanism within the TrueNAS update utility. Before a system applies a major operating system upgrade (e.g., moving from Bluefin to Dragonfish), it would automatically trigger a ZFS snapshot of the boot pool. This ensures that if the new update fails or causes hardware incompatibility, the user can instantly roll back to a known-working state. ✨ Key Benefits While this specific automation is a popular suggestion
Since you asked for a "report" on this topic, I have prepared a summary of this feature request and its importance for system administrators. 📋 Feature Report: NAS-125176 Automatic Snapshots During OS Upgrades Before a system applies a major operating system upgrade (e