# Changing address of image.ub load

**URL:** <https://discuss.pynq.io/t/changing-address-of-image-ub-load/2631>\
**Category:** Support\
**Created:** [May 7, 2021, 4:25pm UTC](https://discuss.pynq.io/t/changing-address-of-image-ub-load/2631 "2021-05-07T16:25:01Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Pawel5sekund](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@Pawel5sekund](https://discuss.pynq.io/u/Pawel5sekund)\
**Post date:** [May 7, 2021, 4:25pm UTC](https://discuss.pynq.io/t/changing-address-of-image-ub-load/2631/1 "2021-05-07T16:25:01Z")

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Hello I’ve made image for my custom Zynq board, but without manual change in load address of image.ub - I can’t start my kernel. I’ve regenerated boot.scr file and system start with this, but I need to modify it during system compilation process or on \*.img. I would like to to share my custom image of the PYNQ with EBAZ4205 community and manual change of the boot.scr after image write process sounds disproportionately. How can I do that? Or which parameters in manual kernel config or u-boot manual config change it?