Create empty filesystem?

[andig]

I'm using https://github.com/gokrazy/gokrazy to create bootable application images. It needs to add an (ext4) partition for user data to the image. Can I create that ext filesystem and write it to the image? Any hint would be appreciated.

[prologic]

Kind of looking for the same thing myself 😅 @andig Did you solve this in Go at all?

[andig]

No…