antatarmbian

via dd img->nvme did the trick. One slight problem is the identical uuids of sdcard and nvme but it does not make much sense anyway to use identical images on 2 devices plugged in at the same time. Next step now will be populating the nvme with additional images so thanks a lot for your helping hands

Thanks - now I get the booloader menu from SPI on hdmi Console. I wanted to experiment with efi-grub boot and installed the following image on sd https://dl.armbian.com/uefi-arm64/Bookworm_current_cinnamon-backported-mesa and it boots without problem, showing the grub-menu. I then did armbian-install -> nvme01 Install UEFI system with grub to transfer system + /boot/efi to nvme. But still I cannot boot the system after removing the sd-card. the bootloader says sth like nvme 0 no img found. So as workaround I performed an update-grub, so that at least the option to boot the system on nvme appears (and works) in sdcard grub-menu. Any hint how I can render the nvme directly bootable from spi bootloader menu without the sdcard?

Hmm.. after Werner's hint I used Armbian_24.2.1_Odroidm1_jammy_current_6.6.16.img.xz from oldarchive but after armbian-install → Install/Update the bootloader on MTD Flash no change of behavior, i.e. system does not boot without sd-card inserted. I did not perform Boot from MTD flash - system on Sata ... again, since the desired system is already on nvme. Just for clarification: is my expectation correct, that system should boot without sd-card inserted (since bootloader is in MTD-flash), or is the effect of flashing MTD merely, that the system can use the bootloader of the sd-card without pressing RCY button? Although I ordered a usb-serial adapter in order to be able to debug the situation, I would very much appreciate if the bootmenu could appear on hdmi Console - I wonder how this could be achieved - what build does Usual User refer to with "my build"?

if I look into the archive for older Versions https://armbian.atomonetworks.com/archive/odroidm1/archive/ then the oldest Version is 24.8.1, which to my knowledge is too new

I installed v2025.2.2 on sdcard and then performed armbian-install boot from spi + system on nvme. Without any error-messages system could afterwards not be booted without sdcard inserted. I assume I could remedy the situation with the linux-u-boot-odroidm1-edge_24.8.0-trunk_arm64__2024.04-S2504-P3b44-Haddb-V73be-B4f92-R448a.deb mentioned above and wonder, if anybody could provide that.