marras

@jock at the end I was impatient and I cleared the emmc and tried to restore the backup... Everything went well, Android has been restored successfully! I think I was lucky because the backup is 2.5gb, under the fat32 limit, but after decompression it is as big as the all emmc (16gb). The problem is that I cannot extract anything from it, since the decompressed file is not an archive according 7zip, it's just a file without any extension. After cleared the emmc again, Linux from sd booted successfully and also after flashing in the emmc. wifi, hdmi works (only audio doesn't but I don't need that). I'm a bit disappointed by the performance, xfce doesn't run that fast, but it's ok since I need just to install klipper for my 3d printer and I hope it's enough for this purpose. Thank you for all the support, you have been precious!

So basically you are saying I cannot boot Armbian directly from sdcard without erasing the internal flash, such as multiboot does? In the guide in the first page you say that is a good idea to try to boot linux from sd first, for this reason I thought it would be possible at least to try before messing with the emmc edit: reading carefully the guide, you suggest to wipe the flash first, than try to boot from sd card with armbian flashed onto it, and then if everything works try to flash in the internal memory, right? Anyway, the 2 backups seems the same, how can I extract the files and dtb from them? I tryed 7zip but it doesn't not recognise the file inside img.gz as an archive so I don't know how to extract

@jock here the image of the board you requested: https://ibb.co/Ctm3HrK https://ibb.co/qjZp2py I didn't erase the flash, I can still boot to android. My issue is that I don't know how to extract the dtb without having root on android. If I just flash on the sd Armbian, when I try to power on the tvbox with the sd insert I've a black screen (I think it needs a proper dtb). I've noticed I've a shell access through multitool, but when I try to mount mmcblk2 in order to access to the emmc, I cannot make a dir under mmt to mount properly since it is a read-only file system. Anyway I managed to successfully make a full backup, simply retried this afternoon and all went smoothly... I also created 2 backups....This is how computer works, you know! I'm a total noob, but I hope you can help me somehow!

Hi! I'm in the process of installing linux on my leelbox q2 pro, rk3229 2gb ram 16gb eMMC (samsung klmag2ge4a-a001). I was trying to backup the flash using multitool, it recognize the flash but the process seems to stuck around 3%, I've waited for 1h and it wasn't moved from there. Tried an other sd and the problem is still there. Also I tried to run armbian from the sd directly as suggested in the guide, flashed with etcher 2 different sds, but everything I got is a black screen. I read in the thread that I might need of a bootloader, but where I can find the one I need? How to flash a bootloader on the sd in order to make iot bootable? Thank you and Forza Italia!