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I'm having a problem installing a driver. Once compiled correctly, the system gives me an error. Note that I performed the same procedure with : RaspiOS on an arm64 board (RPi4B) with the same kernel version, and it worked. Debian 12 on a PC, and it worked. Armbian on an arm64 board (RPi4B) with the same kernel version, and it worked. Armbian on an armhf board (nanopineocore) with the same kernel version, and it worked. But does not work with Armbian Bookworm on a nanopineocore2 board: epsilonrt@nanopineocore2:~/src/tty0tty/module$ sudo modprobe tty0tty modprobe: ERROR: could not insert 'tty0tty': Exec format error epsilonrt@nanopineocore2:~/src/tty0tty/module$ modinfo tty0tty filename: /lib/modules/6.12.20-current-sunxi64/updates/dkms/tty0tty.ko license: GPL description: tty0tty null modem driver author: Luis Claudio Gamboa Lopes <lcgamboa@yahoo.com> depends: name: tty0tty vermagic: 6.12.20-current-sunxi64 SMP mod_unload aarch64 epsilonrt@nanopineocore2:~/src/tty0tty/module$ uname -a Linux nanopineocore2 6.12.20-current-sunxi64 #1 SMP Sat Mar 22 19:54:28 UTC 2025 aarch64 GNU/Linux The problem does not come from the driver which loads very well on all the systems mentioned at the beginning of the post, for example with Armbian Bookworm on an RPi 4B board: epsilonrt@r14:~/src/tty0tty/module$ sudo modprobe tty0tty epsilonrt@r14:~/src/tty0tty/module$ dmesg | tail [ 15.046221] bcmgenet fd580000.ethernet end0: Link is Up - 1Gbps/Full - flow control off [ 21.678333] Bluetooth: RFCOMM TTY layer initialized [ 21.678364] Bluetooth: RFCOMM socket layer initialized [ 21.678384] Bluetooth: RFCOMM ver 1.11 [ 84.092535] mempolicy: Request by 'ps' to set policy to 5 ignored [ 84.092553] mempolicy: Request by 'ps' to set policy to 3 ignored [ 261.550048] mempolicy: Request by 'ps' to set policy to 5 ignored [ 261.550065] mempolicy: Request by 'ps' to set policy to 3 ignored [ 643.744771] tty0tty: loading out-of-tree module taints kernel. [ 643.750941] tty0tty null modem driver v1.4 epsilonrt@r14:~/src/tty0tty/module$ ls /dev/tnt* /dev/tnt0 /dev/tnt1 /dev/tnt2 /dev/tnt3 /dev/tnt4 /dev/tnt5 /dev/tnt6 /dev/tnt7 Also, the same error occurs with another driver like v4l2loopback: epsilonrt@nanopineocore2:~/src/v4l2loopback$ sudo modprobe v4l2loopback modprobe: ERROR: could not insert 'v4l2loopback': Exec format error epsilonrt@nanopineocore2:~/src/v4l2loopback$ modinfo v4l2loopback filename: /lib/modules/6.12.20-current-sunxi64/updates/v4l2loopback.ko alias: char-major-10-255 license: GPL version: 0.14.0-25-g8d806ad author: Vasily Levin, IOhannes m zmoelnig <zmoelnig@iem.at>,Stefan Diewald,Anton Novikovet al. description: V4L2 loopback video device srcversion: FC835C7E0E75B1C90BC5391 depends: videodev name: v4l2loopback vermagic: 6.12.20-current-sunxi64 SMP mod_unload aarch64 parm: debug:debugging level (higher values == more verbose) (int) parm: max_buffers:how many buffers should be allocated [DEFAULT: 2] (int) parm: max_openers:how many users can open the loopback device [DEFAULT: 10] (int) parm: devices:how many devices should be created (int) parm: video_nr:video device numbers (-1=auto, 0=/dev/video0, etc.) (array of int) parm: card_label:card labels for each device (array of charp) parm: exclusive_caps:whether to announce OUTPUT/CAPTURE capabilities exclusively or not [DEFAULT: 0] (array of bool) parm: max_width:maximum allowed frame width [DEFAULT: 8192] (int) parm: max_height:maximum allowed frame height [DEFAULT: 8192] (int) epsilonrt@nanopineocore2:~/src/v4l2loopback$ uname -a Linux nanopineocore2 6.12.20-current-sunxi64 #1 SMP Sat Mar 22 19:54:28 UTC 2025 aarch64 GNU/Linux epsilonrt@nanopineocore2:~/src/v4l2loopback$ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Armbian 25.2.3 bookworm Release: 12 Codename: bookworm You can find all the details at armbian/build#8153 For all my tests I use the images available for download on the Armbian site. It appears that the driver compliance checking system is corrupted on Armbian sunxi64. Could the team look into this issue ? Thanks.

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 ?