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Guardian
Learn how Guardian provides comprehensive asset inventory and network visibility for OT and IoT environments.
Maintenance Guide
Information about the maintenance tasks of Guardian, to help you administer and maintain the solution in a production environment.
Software update and rollback
Do a software update from a shell console
You can do a software update from a shell console.

Guardian
Learn how Guardian provides comprehensive asset inventory and network visibility for OT and IoT environments.
- Introduction
  An overview of Guardian.
- Installation Guide
  Information and resources on how to install Guardian, and the different options and settings that are available.
- Administrator Guide
  Information and resources about the Administration section of Guardian, and the tasks that you can do in this part of the software.
- User Guide
  Information and resources about the main features of Guardian, and the tasks that you can do from the user interface (UI).
- Maintenance Guide
  Information about the maintenance tasks of Guardian, to help you administer and maintain the solution in a production environment.
  - Introduction
  - Backup and Restore
  - Reboot and Shutdown
  - Software update and rollback
    - Software updates and rollbacks
      You can update the Nozomi Networks software to a newer release, or roll it back to a previous release on physical or virtual sensors.
    - Do a software update from the web UI
      You can do a software update from the web UI.
    - Schedule a software update from the web UI
      You can schedule a software update from the web UI.
    - Do a software update from a shell console
      You can do a software update from a shell console.
    - Do a software rollback from a shell console
      You can do a software rollback from a shell console. This can only be done once because only the previously installed version of the software is available for rollback.
  - Reset
  - Miscellaneous
- Print format documentation
  A list of all the print-format documentation that is available for Guardian.

Do a software update from a shell console

You can do a software update from a shell console.

Before you begin

You have downloaded the applicable update bundle that you want to use for the update.

Procedure

Open a shell console.
In the shell console, type cd and navigate to the directory where the .bundle file is located.
To copy the .bundle file to the sensor, enter the command:
```
scp VERSION-update.bundle admin@<sensor_ip>:/data/tmp
```
Note:
You should refer to Release notes of the new version to follow the correct update path.

The update bundle uploads.
Enter the command:
```
ssh admin@<sensor_ip>
```
To go to privileged mode, enter this command:
```
enable-me
```
You can now perform system changes.
To start the installation of the new software, enter the command:
```
install_update /data/tmp/VERSION-update.bundle
```
Important:
Make sure that you use the absolute path of the VERSION-update.bundle In the example above, the absolute path is /data/tmp/VERSION-update.bundle

Results

The update process begins. The update may take several minutes to complete.