# Extending the default "dual rootfs update" functionality of mender with additional images

**URL:** <https://hub.mender.io/t/extending-the-default-dual-rootfs-update-functionality-of-mender-with-additional-images/3766>\
**Category:** General Discussions\
**Created:** [June 17, 2021, 8:30pm UTC](https://hub.mender.io/t/extending-the-default-dual-rootfs-update-functionality-of-mender-with-additional-images/3766 "2021-06-17T20:30:22Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![eystein](https://avatars.discourse-cdn.com/v4/letter/e/e5b9ba/32.png) [@eystein](https://hub.mender.io/u/eystein)\
**Post date:** [June 17, 2021, 9:46pm UTC](https://hub.mender.io/t/extending-the-default-dual-rootfs-update-functionality-of-mender-with-additional-images/3766/2 "2021-06-17T21:46:30Z")

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Hi @davidr ,

This Update Module implements the dual rootfs update (the same way that’s built into the Mender client): [Root Filesystem Image v2](https://hub.mender.io/t/root-filesystem-image-v2/402)

It contains a link to the module itself, it’s quite simple and should be a good starting point to customize: [mender/rootfs-image-v2 at master · mendersoftware/mender · GitHub](https://github.com/mendersoftware/mender/blob/master/tests/rootfs-image-v2)

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