Add new one partition to image

[pompushko]

Hello.

How can I add a new small partition like 64mb during build and store some data on it?
I just want to make a read-only image and I need some user-space partition.

Thank you!

[XECDesign]

That's not currently a built-in feature, but we can treat it as a feature request for later.

In the meantime, you could edit export-image/prerun.sh to do it.

There may be other parts of Raspberry Pi OS which would be surprised to see an extra partition and might not know what to do with it. For example, I'd expect the resize script to fall over. However, I'm guessing that's not really a concern with a read-only rootfs.