# Overlay Base doesn't exist within my PYNQ image

**URL:** <https://discuss.pynq.io/t/overlay-base-doesnt-exist-within-my-pynq-image/1574>\
**Category:** Support\
**Created:** [July 26, 2020, 2:25pm UTC](https://discuss.pynq.io/t/overlay-base-doesnt-exist-within-my-pynq-image/1574 "2020-07-26T14:25:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Reedom](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/reedom/32/966_2.png) [@Reedom](https://discuss.pynq.io/u/Reedom)\
**Post date:** [July 26, 2020, 2:25pm UTC](https://discuss.pynq.io/t/overlay-base-doesnt-exist-within-my-pynq-image/1574/1 "2020-07-26T14:25:19Z")

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Board : ZCU102  
PYNQ v2.4

Hi,

I have create a PYNQ image and am able to connect to Jupyter notebook. I was running the overlay\_download example and found that I don’t have the base.bit file in my PYNQ image. Am I able to download this example overlay online? I wanted to check that part of my PYNQ image works!

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**Author:** ![cathalmccabe](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/cathalmccabe/32/3348_2.png) [@cathalmccabe](https://discuss.pynq.io/u/cathalmccabe)\
**Post date:** [July 27, 2020, 8:47am UTC](https://discuss.pynq.io/t/overlay-base-doesnt-exist-within-my-pynq-image/1574/2 "2020-07-27T08:47:21Z")

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As you build a custom image, you would need to build your own overlays including base.bit  
You could try port it from one of the existing examples - ZCU104.

Cathal

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**Author:** ![mishko](https://avatars.discourse-cdn.com/v4/letter/m/87869e/32.png) [@mishko](https://discuss.pynq.io/u/mishko)\
**Post date:** [August 18, 2020, 8:57am UTC](https://discuss.pynq.io/t/overlay-base-doesnt-exist-within-my-pynq-image/1574/3 "2020-08-18T08:57:13Z")

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Hello Reedom,  
is it possible to share the pynq image you built for ZCU102 as well as the details of how you built it?  
Thank you in advance,  
Misko