# DFU update module generator script bug

**URL:** https://hub.mender.io/t/dfu-update-module-generator-script-bug/6418
**Category:** General Discussions
**Tags:** update-modules, dfu
**Created:** [December 14, 2023, 12:06pm UTC](https://hub.mender.io/t/dfu-update-module-generator-script-bug/6418 "2023-12-14T12:06:57Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![TheYoctoJester](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/theyoctojester/32/1444_2.png) [@TheYoctoJester](https://hub.mender.io/u/TheYoctoJester)
#### Post date: [December 15, 2023, 8:07am UTC](https://hub.mender.io/t/dfu-update-module-generator-script-bug/6418/6 "2023-12-15T08:07:07Z")

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@Utsav_Shah the Update Module has to be installed on the device. This is explained in the tutorial here: [Device Firmware Update (DFU)](https://hub.mender.io/t/device-firmware-update-dfu/1617#install-the-update-module-5).

An Update Module is the client side handling for such artifacts. The upstream source is:

> [@Device Firmware Update (DFU)](https://hub.mender.io/t/device-firmware-update-dfu/1617#install-the-update-module-5):
>
> Description The DFU Update Module is a reference Update Module that demonstrates how to update firmware of a peripheral device using the Device Firmware Update USB device class. Example use-cases: Deploy firmware updates to peripheral devices using the USB Device Firmware Update (DFU) protocol Specification Module name dfu Supports rollback no Requires restart no Artifact generation script yes Full operating system updater no Source code [Update Module](https://github.com/mendersoftware/mender-update-modules/tree/master/dfu/module/dfu), [Artifact Generat…](https://github.com/mendersoftware/mender-update-modules/blob/master/dfu/module-artifact-gen/dfu-artifact-gen)

More details on Update Modules:

> **[Create a custom Update Module | Mender documentation](https://docs.mender.io/artifact-creation/create-a-custom-update-module)**

Greetz,  
Josef

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