Glock24

Hello, I'll like to build my own kernel, mostly to learn more about Linux on ARM. The device I have is RK3399 based (Nanopi M4v2). Can I use the mainline kernel or are some parches needed? Where can I get the correct DTS? Is there any guide on how to do this? I'm not unfamiliar on how to build a custom kernel, but that was on x86/x64. ARM is a very different animal.

I'm using the latest Ubuntu-based Armbian stable for Nanopi M4v2. Thanks for the answer, I'll try to build the cores from source. From what I understand, the current kernel does have 3D HW acceleration for Mali-T860, right?

Hello, I installed Retroarch from the repos, tried to install a "core" from the Retroarch updater but no cores were available. I searched about that if the installed version is too old no cores will be available, so I added the Retroarch ppa and installed the newest version, but got the same problem. Does Retroarch work under Armbian? Do I need to manually install "core" binaries? If so, where can I get them? Thanks.

I connected the UART and did not see any messages, but for some reason I tried again the next day and it just booted, same SD card and same image as before, without rewriting the image. Very strange.

Hello, I also have this problem, but I don't have eMMC, only SD. I downloaded the latest image (Armbian_22.05.4_Nanopim4v2_jammy_current_5.15.48_xfce_desktop) and burned to SD, booted and configured. So far so good. I updated the system, rebooted and the board did not come up again. I wrote the SD card again using Balena Etcher and it still won't boot. I downloaded the Bullseye variant (Armbian_22.05.4_Nanopim4v2_bullseye_current_5.15.48) and it won't boot either. I tried OpenELEC and it boots fine. I tried Android from Friendlyelect and it boots fine. Why did Armbian boot at first but after the update it won't even if I rewrite the same image I used at first?