XU4 emmc and nextcloudpi can't boot

[Guest]

Hello,

 

I have an XU4 with an emmc.

 

Now I have tried nextcloudpi image from https://ownyourbits.com/downloads/ here.

 

I use dd.

With a SD card, I have two partitions and can boot.

With the emmc, I have only one partition and can't boot.

 

I don't now why :-( can someone help me?

 

greetings