Install, License, and Upgrade Configuration

The OcNOS Installation Guide provides instructions for installing and licensing OcNOS. It includes the following steps:

Download the OcNOS installation image.
Download an OcNOS license.
Install OcNOS:
From an FTP, HTTP, or TFTP server
From a USB stick
Using Zero Touch Provisioning
Set up a license

OcNOS supports both patch upgrades and full upgrades:

A patch upgrade updates to a new OcNOS image with bug fixes but without kernel changes.
A full upgrade updates to a new OcNOS ONIE image with bug fixes, including kernel changes.

The OcNOS Installation Guide also covers procedures for upgrading existing OcNOS installations by either:

Installing a new OcNOS version over an existing OcNOS version saves the existing configuration files.
Installing a fresh OcNOS version is destructive and removes existing configuration files, SSH keys, and trial licenses. Users must manually restore these items from backups as needed.