Hello,

I am very sorry that I have to leave the Armbian flock, but the Dietpi-Distro is so much better. It simply boots off the SD-Card on my NanoPi NeoCore and the darned Ethernet simply works; also the DTB  overlay files work, so the additional I2C and UART hardware works in Dietpi. And the kernel is 6.x too !

However, the NanoPi Neocore is shipped with an outdated Armbian (using Kernel 4.x) on EMMC. What I now want is to replace the prepared EMMC Armbian distro with whatever is on my SD-Card, but this task is more difficult than I tought. What I would need is to simply copy the whole SD-Card to EMMC, but the recommended "dd if='sdcard...' of='emmc...'...." command didn't really help. The bootloader "U-Boot" complained that the boot partition is now missing. 

Obviously, the U-Boot demands that there is a Partition1 in FAT/exFAT/FAT32 which contains the boot directory, then there is supposed to be Partition2 with most of the Linux files, and why there is a Partition3 with the /var filesystem part etc., I dont know. But what I need is just one single partition on EMMC which contains everything in one partition, preferably an EXT4 type partition.
Unfortunately, U-Boot always seem to use the command "fatload ...." to load the rest of the stuff. 

Is there any convenient way of getting rid of these 3 unwanted EMMC partitions and install DietPi instead, on one partition? If so, how do I tell U-Boot to boot from this one partition properly ?

 

I suggest to ask at dietpi's place for question about installation. We cannot support 3rd party OS.

Not sure where you dug out such an old Armbian image.

Check automated builds here: https://github.com/armbian/community/ -> Releases

HW is community maintained so its status is unknown to Armbian team.