Migrate devices and groups to latest Device Update for IoT Hub release

Άρθρο
12/09/2022

As the Device Update for IoT Hub service releases new versions, you'll want to update your devices for the latest features and security improvements. This article provides information about how to migrate from the [Public Preview Refresh(PPR) release] to the current, GA release. This article also explains the group and UX behavior across these releases. If you do not have devices, groups, and deployments that use the Public Preview Refresh release, you can ignore this page.

To migrate successfully, you will have to upgrade the DU agent running on your devices. Note that as there are major changes with the GA release, we recommend that you follow the instructions closely to avoid errors.

Note

All PPR device groups created will be automatically changed to GA groups. The groups and devices will be available after migration. The deployment history will not carry over to the updated GA groups.

Update the Device Update agent

For the GA release, the Device Update agent can be updated manually or using the Device Update Service using apt manifest or image updates. If you are using image updates, you can include the GA Device Update agent in the your update.

Manual DU Agent Upgrade

Before you update your device, the device attributes will include the PPR PnP model details. The Contract Model Name will show Device Update Model V1 and Contract Model ID will show dtmi:azure:iot:deviceUpdateContractModel;1.

SSH into your device and update the Device Update agent.

sudo apt install deviceupdate-agent
sudo systemctl restart deviceupdate-agent
sudo systemctl status deviceupdate-agent

Confirm that the DU agent is running correctly. Look for 'HealthCheck passed'
```
sudo -u adu /usr/bin/AducIotAgent -h  
```
See the updated device in the Device Update portal. The device attributes will now show the updated PnP model details.The Contract Model Name will show Device Update Model V2 and Contract Model ID will show dtmi:azure:iot:deviceUpdateContractModel;2.

OTA DU Agent Upgrade though APT manifest

Before you update your devices, the device attributes will include the PPR PnP model details. The Contract Model Name will show Device Update Model V1 and Contract Model ID will show dtmi:azure:iot:deviceUpdateContractModel;1.

Add device update agent upgrade as the last step in your update. The import manifest version must be "4.0" to ensure it is targeted to the correct devices. See below a sample import manifest and APT manifest:

Example Import Manifest

{
   "manifestVersion": "4",
   "updateId": {
     "provider": "Contoso",
     "name": "Sensor",
     "version": "1.0"
   },
   "compatibility": [
     {
       "manufacturer": "Contoso",
       "model": "Sensor"
     }
   ],
   "instructions": {
     "steps": [
       {
     "handler": "microsoft/apt:1",
     "handlerProperties": {
       "installedCriteria": "1.0"
     },
     "files": [
       "fileId0"
     ]
       }
     ]
   },
   "files": {
     "fileId0": {
       "filename": "sample-upgrade-apt-manifest.json",
       "sizeInBytes": 210,
       "hashes": {
     "sha256": "mcB5SexMU4JOOzqmlJqKbue9qMskWY3EI/iVjJxCtAs="
       }
     }
   },
   "createdDateTime": "2022-08-20T18:32:01.8404544Z"
 }

Example APT manifest

  {
    "name": "Sample DU agent upgrade update",
    "version": "1.0.0",
    "packages": [
    {
        "name": "deviceupdate-agent"
    }
    ]
}

Note

It is required for the agent upgrade to be the last step. You may have other steps before the agent upgrade. Any steps added after the agent upgrade will not be executed and reported correctly as the device reconnects with the DU service.

Deploy the update.
Once the update is successfully deployed, the device attributes will now show the updated PnP model details.The Contract Model Name will show Device Update Model V2 and Contract Model ID will show dtmi:azure:iot:deviceUpdateContractModel;2.

Group and deployment behavior across releases

Device with the Public Preview Refresh DU agent ( 0.8.x) and GA DU agent (1.0.x) can be managed through the Device Update portal.
Devices with older agents (0.7.0/0.6.0) cannot be added to these groups.

Next steps

Understand Device Update agent configuration file

You can use the following tutorials for a simple demonstration of Device Update for IoT Hub:

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