---
title: 2026 R2 Core Installation
slug: enterprise/2026-r2-core-installation
docTags: 
createdAt: 2025-02-06T08:25:43.435Z
---

Here you can find all of our customer-hosted installation guides. For a typical installation, you will need the installer file, the image file, and the app image file to properly perform an installation. Some of the older installations may have up to four files, all which can be found in their documents.

*New to Linux?* Read more about it here to get started

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# 2026 R2 Installation Guides & Links

**IRIS+ Enterprise 2026 R2 Ubuntu Single Server**

Download and read through the IRIS+ Enterprise On-Prem Guides for 2026 R2 below

IRIS+™ Enterprise Core 2026 R2 Installer Manual:

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IRIS+™ Enterprise Edge On-Prem Installer Manual:

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IRIS+™ Enterprise Edge On-Prem Installer - Appendix 1 (*Adding an Edge to the Core)*

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IRIS+™ Enterprise 2026.R2 Components and Versions:

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Download the three latest installation files below. The installation files covers app images, image environment, the installer, and the edge installer:

[https://storage.googleapis.com/airgap-deployments/2026\_R2-835/app-images-txt-2026\_R2-835.tar.gz](https://storage.googleapis.com/airgap-deployments/2026_R2-835/app-images-txt-2026_R2-835.tar.gz)

[https://storage.googleapis.com/airgap-deployments/2026\_R2-835/images-env-2026\_R2-835.tar.gz](https://storage.googleapis.com/airgap-deployments/2026_R2-835/images-env-2026_R2-835.tar.gz)

[https://storage.googleapis.com/airgap-deployments/2026\_R2-835/iris\_plus\_installer-2026\_R2-835.tar.gz](https://storage.googleapis.com/airgap-deployments/2026_R2-835/iris_plus_installer-2026_R2-835.tar.gz)

[https://storage.googleapis.com/airgap-deployments/2026\_R2-835/irisplus-edge-installer\_2026\_R2-835.tar.gz](https://storage.googleapis.com/airgap-deployments/2026_R2-835/irisplus-edge-installer_2026_R2-835.tar.gz)

### Relevant Edge Versions:

- irisity/innovi-device-manager:2026\_R2
- irisity/innovi-analytics-service:2026\_R2
- irisity/innovi-digital-io-gateway:2026\_R2

*Refer to version R1.2 to disable the auto kernel update*

## Patches & Updates

Missing k3s files were found in this version. When downloading the required links, be sure to download this file as well. 
[https://storage.googleapis.com/airgap-deployments/2026\_R2-835/k3s-airgap-images-20260709.tar.gz](https://storage.googleapis.com/airgap-deployments/2026_R2-835/k3s-airgap-images-20260709.tar.gz)

<u>**Instructions**</u>

It's best to perform this step **before** installing the IRIS+ Enterprise, running as root:

```linux
mkdir -p /var/lib/rancher/k3s/agent/images/
cp k3s-airgap-images-20260709.tar.gz /var/lib/rancher/k3s/agent/images/
```

**Image Import Fallback Procedure**

If the standard installation process fails to import the required images, use one of the following methods:

**Option A — Manual import via containerd:**

```linux
gunzip -c k3s-airgap-images-20260709.tar.gz | ctr -n k8s.io -a /run/k3s/containerd/containerd.sock images import -
```

**Option B — Airgap image directory (recommended):**

```linux
cp k3s-airgap-images-20260709.tar.gz /var/lib/rancher/k3s/agent/images/
```

After copying the file, restart the k3s service for the new images to be picked up:

```linux
sudo systemctl restart k3s        # for server nodessudo systemctl restart k3s-agent  # fo
```