# Split U-boot into stages

**URL:** <https://hub.mender.io/t/split-u-boot-into-stages/2409>\
**Category:** General Discussions\
**Created:** [September 9, 2020, 7:27am UTC](https://hub.mender.io/t/split-u-boot-into-stages/2409 "2020-09-09T07:27:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![joeli](https://avatars.discourse-cdn.com/v4/letter/j/5e9695/32.png) [@joeli](https://hub.mender.io/u/joeli)\
**Post date:** [September 9, 2020, 7:27am UTC](https://hub.mender.io/t/split-u-boot-into-stages/2409/1 "2020-09-09T07:27:39Z")

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Hi,

When reading about u-boot I get the impression that it is possible to split the code into stages. Does Mender support this behaviour (e.g. a very small u-boot in the boot partition and the rest of it located in rootfs\_a and rootfs\_b)?

Best regards,  
Jonny

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**Author:** ![drewmoseley](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/drewmoseley/32/47_2.png) [@drewmoseley](https://hub.mender.io/u/drewmoseley)\
**Post date:** [September 9, 2020, 2:07pm UTC](https://hub.mender.io/t/split-u-boot-into-stages/2409/2 "2020-09-09T14:07:12Z")

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Hi @joeli it’s not something we have tested but I don’t know of anything that would explicitly preclude it. If you test it out, please report back.

Drew

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**Author:** ![joeli](https://avatars.discourse-cdn.com/v4/letter/j/5e9695/32.png) [@joeli](https://hub.mender.io/u/joeli)\
**Post date:** [September 10, 2020, 6:06am UTC](https://hub.mender.io/t/split-u-boot-into-stages/2409/3 "2020-09-10T06:06:36Z")

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Hi Drew,  
Ok, thanks for the response. If I get time to test it, I will report the result.

Jonny