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Contact an Enterprise SpecialistTrueNAS CORE Version Documentation
This content follows the TrueNAS CORE 13.0 releases. Use the Product and Version selectors above to view content specific to different TrueNAS software or major version.
Updating CORE
6 minute read.
TrueNAS CORE has an integrated update system to make it easy to keep up to date.
We recommend performing updates when the TrueNAS system is idle, with no clients connected and no scrubs or other disk activity happening. Most updates require a system reboot. Plan updates around scheduled maintenance times to avoid disrupting user activities.
The update process does not proceed unless there is enough free space in the boot pool for the new update files. If a space warning displays, go to System > Boot to remove unneeded boot environments.
The system checks daily for updates and downloads an update if one is available. An alert is issued when a new update becomes available. The automatic check and download of updates are disabled by unsetting Check for Updates Daily and Download if Available. Click (Refresh) to perform another check for updates. To change the train, use the drop-down menu to make a different selection.
The train selector does not allow downgrades. For example, you cannot select the STABLE train while booted into a Nightly boot environment or a 9.10 train while booted into an 11 boot environment. To go back to an earlier version after testing or running a more recent version, reboot and select a boot environment for that earlier version.
Information about the update displays with a link to the release notes. Alwys read the release notes before updating to determine if any of the changes in that release impact system use.
A dialog to save the system configuration file appears before installing updates.
Keep the system configuration file secure after saving it. The security information in the configuration file can grant unauthorized access to your TrueNAS system.
Ensure the system is in a low-usage state as described above in Preparing for Updates. Click DOWNLOAD UPDATES to download and install an update.
The Save Configuration dialog appears so you can save the current configuration to external media.
A confirmation window appears before installing the update. If you set Apply updates and reboot system after downloading, clicking CONTINUE downloads and applies the update, then reboots the system. The update can be downloaded for a later manual installation by unsetting Apply updates and reboot system after downloading.
APPLY PENDING UPDATE displays when an update is downloaded and ready to install. Setting Confirm and clicking CONTINUE updates and reboots the system.
Each update creates a boot environment. If the update process needs more space, it attempts to remove old boot environments. TrueNAS does not remove boot environments marked with the Keep attribute as shown in System > Boot. The upgrade fails if your system does not have space for a new boot environment. Space on the operating system device can be manually freed by going to System > Boot and removing the Keep attribute or deleting any boot environments that are no longer needed.
You can manually download and apply updates in System > Update.
You cannot use manual updates to upgrade from older major versions.
Go to https://download.freenas.org/ and find an update file of the desired version.
Manual update file names end with
Download the desired update file to your local system. Log in to the TrueNAS web interface and go to System > Update. Click INSTALL MANUAL UPDATE FILE.
The Save Configuration dialog opens. You can save a copy of the current configuration to external media for backup in case of an update problem.
After the dialog closes, the manual update screen displays.
The current version of TrueNAS displays for verification.
Select the manual update file saved to your local system using Browse. Set Reboot After Update to reboot the system after the update installs. Click APPLY UPDATE to begin the update.
Update in Progress
Starting an update shows a progress dialog. When an update is in progress, the web interface shows an animated system_update_alt icon in the top row. Dialogs also appear in every active web interface session to warn that a system update is in progress. Do not interrupt a system update.