Overview

This article describes how to update the NVR appliance's operating system via (CLI).

NOTES & REQUIREMENTS: It is recommended to perform this update before updating the UniFi Video service.

Table of Contents

1. Introduction
2. How to Update the NVR OS
3. Related Articles

Introduction

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Using the command line interface (CLI) we will trigger a package refresh which will update any currently installed system software. This system administration task is needed to include any security updates or related fixes which may have been published after the deployment of the NVR appliance. Follow the steps below to perform the update.

How to Update the NVR OS

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1. Open a shell session (SSH) to the NVR appliance with this command:

ssh root@<NVR_APPLIANCE_IP>

2. Enter the following commands:

apt-get update && apt-get upgrade -y && apt-get dist-upgrade -y && apt-get autoremove -y && apt-get autoclean && apt-get clean

This is what each command does:

• apt-get update: retrieves a new list of software packages from the Debian repository
• apt-get upgrade -y: downloads and installs all updated software and automatically answers yes to all questions
• apt-get dist-upgrade -y: installs a new UNIX kernel (when available) and automatically answers yes to all questions
• apt-get autoremove -y: removes any unused software packages and automatically answers yes to all questions
• apt-get autoclean: deletes any old software archive files from previous apt-get sessions
• apt-get clean deletes: any downloaded software archive files from previous apt-get sessions

User Tip: Simply running the following is sufficient most of the time: apt-get update && apt-get upgrade The remaining commands are a more robust approach to basic system administration. The base operating system used by the NVR appliance is Debian 7 (Wheezy).

Related Articles

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How to Establish a Connection Using SSH   

UniFi Video - How to Enable SSH on the UVC-NVR (Hardware NVR)