# Rootfs artifact extension

**URL:** https://hub.mender.io/t/rootfs-artifact-extension/1078
**Category:** General Discussions
**Tags:** mender-artifact
**Created:** [September 27, 2019, 8:08am UTC](https://hub.mender.io/t/rootfs-artifact-extension/1078 "2019-09-27T08:08:59Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![RogerC](https://avatars.discourse-cdn.com/v4/letter/r/49beb7/32.png) [@RogerC](https://hub.mender.io/u/RogerC)
#### Post date: [September 30, 2019, 6:52am UTC](https://hub.mender.io/t/rootfs-artifact-extension/1078/4 "2019-09-30T06:52:36Z")

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Thanks Mirzak for your help !

> This is correct, the rootfs images is streamed from the net to the inactive partition and will continue the download if e.g interrupted by a network loss.

Ok because when I check the [Root Filesystem Image v2](https://hub.mender.io/t/root-filesystem-image-v2/402) (which is not the official one ofc) I can not see how it is possible to write at the next position in the partition with a simple cat. So I was wondering…

> Could you maybe specific a bit more details about your use-case? What is meant by “extra files and operations”?

Let’s say I want to upload a root fs partition with the A/B mechanic (i.e. a dual rootfs artifact) with the kernel inside, but I also want to upload an extra data partition at the same time (in the same artifact). The two partitions are “linked” but still dissociated on disk. That is why I was talking about extending the dual rootfs update module behavior.

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