Updating the LoRa Gateway OS

LoRa Gateway OS uses Mender for handling updates. Mender is open-source and can be used either as a CLI utility on the gateway or as a hosted or self hosted platform from which updates can be deployed to one or a group of gateways.

Partition layout

LoRa Gateway OS uses 4 partitions:

  • Boot partition
  • RootFS partition A
  • RootFS partition B
  • Data partition (used for OverlayFS)

One RootFS partition is used for booting, the other for the next update. The bootloader will automatically revert to the last functioning RootFS partition on a failed update.

Hosted Mender

These steps assume that you already have a Hosted Mender account.

To authenticate the gateway with your Mender account, you need to provision your Mender organization token. In your Mender account, you will find this under My organization and then Token.

On the gateway, you need to enter this token in /etc/mender/mender.conf, e.g. by executing nano /etc/mender/mender.conf. Example:

    "InventoryPollIntervalSeconds": 1800,
    "RetryPollIntervalSeconds": 300,
    "RootfsPartA": "/dev/mmcblk0p2",
    "RootfsPartB": "/dev/mmcblk0p3",
    "ServerURL": "https://hosted.mender.io",
    "TenantToken": "TOKEN",
    "UpdatePollIntervalSeconds": 1800

Make sure:

  • That ServerURL contains https://hosted.mender.io
  • That TenantToken contains your organization token

Note: by default the Mender agent will poll every 30 minutes for updates, (for testing) you might want to lower these intervals.

Then you need to modify /etc/default/mender, e.g. by executing sudo nano /etc/default/mender and make sure that it contains:

# Settings this variable to "yes" disables the Mender Agent.
# Any other values enables it.

Finally you need to start the Mender agent:

sudo /etc/init.d/mender start

After this your gateway will show up under Pending Devices. Please refer to the Mender documentation for more help.

Mender CLI

Alternatively, you can also use the mender CLI utility to update the gateway. For this you can execute the following command:

sudo mender -rootfs https://artifacts.loraserver.io/path/to/mender-artifact.mender

Please refer to the Install section to find the correct .mender artifact for your gateway.

Important: after a succesful update, you must execute the following command to commit the upgrade:

mender -commit

If you do not do this, then Mender will rollback to the previous installed version on the next reboot.