nemonein

@slmq It was quite ago, so I don't remember everything. But I wonder you have a SPI Flash Module. If you want to boot from NVMe, you need this (just for 5C lite only). There is one more thing that I did not mention above. If you'ld like to use Btrfs, `/boot` has to ext4 (or fat32). However, using Btrfs needs more effort(or shoud I say trick?) than just doing dd. Here's my lsblk.

Thank you all guys. I tried another way, and finally successfuly boot from NVMe. For others whoever might have this situation, I leave a note here. Get the official Radxa OS for rock (5c|5c lite). Get the vendor Armbian for rock (5c|5c lite). Make a sd card with Radxa image. Plug sd card into PC(not Rock 5c), and copy Armbian img file(ex. Armbian_25.11.1_Rock-5c_trixie_vendor_6.1.115_minimal.img) to the sd card(to /home/radxa or wherever). Boot Rock 5C(lite) with the sd card. Login to Radxa OS, run rsetup and set overlay with SPI boot loader. Reboot. run rsetup again, and update the SPI Bootloader. There are 2 bootloader options, rock 5c and rock 5c SPI bootloader, and I chose SPI bootloader. Then, dd Armbian Image to NVMe device. There's a Instructions. (dd if=Armbian_xxx.img of=/dev/nvme0n1 bs=1M status=progress) Power off, remove SD card and Power On! You can boot from NVMe!

@schwar3kat Thanks!

@Werner Thank you for the reply. Unfortunately, I have little knowledge about building. However, I did find the code for rock-5c(rock-5c.conf), it's extremely shorter than the rock-5b. It has only 27 lines. Of course there are no function post_config_uboot_target__extra_configs_for_rock5c_mainline_environment_in_spi() It means rock-5c.conf has not finished yet. Can you guys take a look?

Board : radxa rock 5c lite with NVMe HAT and SPI Flash Module. OS : Armbian 25.11.2 stable 6.1.115-vendor-rk35xx (Debian trixie) Overlays : rock-5a-spi-nor-flash SPI Flash is on /dev/mtdblock0 Boot from SD : OK Boot from SD system on NVMe : OK ---- I want to boot from Flash, so I tried `Install/Update the bootloader on MTD Flash` menu on `armbian-config'. Then I got this message. No SPI image found. I also updated SPI with `rsetup` from Radxa OS, but it does not work(boot from NVMe failed) either. What do I have to do?