# Robust delta update rootfs

**URL:** <https://hub.mender.io/t/robust-delta-update-rootfs/1144>\
**Category:** Update Modules\
**Created:** [October 11, 2019, 12:42pm UTC](https://hub.mender.io/t/robust-delta-update-rootfs/1144 "2019-10-11T12:42:58Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![oleorhagen](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/oleorhagen/32/297_2.png) [@oleorhagen](https://hub.mender.io/u/oleorhagen)\
**Post date:** [March 23, 2020, 5:02pm UTC](https://hub.mender.io/t/robust-delta-update-rootfs/1144/9 "2020-03-23T17:02:51Z")

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Not out of the box I am afraid. The reason is that the deltas need a read only filesystem to work on, and this is not the case for the raspbian debian images.

I guess it should be possible though, but I have not looked into it myself.

Another way of doing this could be to maybe write an `rsync` update module, or something similar, which does the diffing on the fly 🙂

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