Nitrux Update Tool System

The Nitrux Update Tool System (NUTS) is the official update and rollback utility for Nitrux. It facilitates reliable system upgrades while ensuring you can restore the system to its exact previous state.

Overview

1. Local Backup: NUTS executes xfsdump to create a local backup of the active XFS root partition, establishing a definitive restore point.
2. System Modification: The utility downloads a SquashFS OTA archive and applies the new release state directly to the active root partition.
3. Offline Rollback: NUTS handles offline restorations by deploying the previously generated backup archive to restore the root partition safely.

Usage

Launch NUTS from the applications menu, and select either Update or Rescue.

Configuration

NUTS reads its operational settings directly from /etc/nuts-cpp.conf.

Information

Starting with Nitrux 6.0.0, the Nitrux Update Tool System is exclusively a graphical program (nuts-cpp is a rewrite of the legacy Shell implementation, nuts). Command-line arguments are no longer supported, and all operations run completely through the GUI.

OTA Build is a utility that creates OTA archives (SquashFS archives) for NUTS from the package list and database archives generated during the Nitrux ISO build process.

For a detailed tutorial on the update process, see Resources → Tutorials → System.