Hello@sven-ola After flashing the image correctly, I found that running `sudo apt upgrade` to update the system caused the kernel to fail to load; the issue appears to stem from the kernel update. Installing the `linux-image-current-spacemit 26.2.1` update causes the kernel to fail to load. I noticed that the kernel version in the image is 6.18.18-current-spacemit, while the kernel version in the Armbian repository is 6.6.99-current-spacemit. I think this is likely the root of the problem; I should not have used apt to update the kernel. In any case, thank you for porting Armbian to the OrangePi RV2.

The R2S has an internal eMMC and a USB port. After debugging the default u-boot scripts I found that it does not boot from USB once you have Armbian installed on eMMC. To reinstall a fresh copy of Armbian or any other OS, you have to use the fastboot based KyTool which does not usually work on a modern Windows PC with USB 3.0 ports. So you could end up in a state where you have to manually interrupt U-boot, or worse if you corrupt the eMMC. I rewrote the u-boot flow on the R2S. I also cleaned up the nand-sata-install and added a lot of safety checks. It will look at USB and boot from there. After that you can safely install to eMMC. Below is the link. Please let me know if it is worth submitting a PR. The changes will not touch anything in the main system, it adds these scripts to /usr/local/lib and /usr/local/sbin. https://github.com/arvindmaxar/u-boot-tools

Ok after trying a speeker switcher, switching from cinnimon to the kde version, finnally I tried flashing with the offical armbian flasher, and I tried a bunch of old online solutions that looked similar. Still my headphone doesn't work. I think it is due to armbian thinking the built in sound card is the headphones. But on a positive note the weird unmounting of armbian when my chromebook sleeps or when the lid is closed does not occur on armbian kde. So far kde is more stable than cinnimon.

@José Manuel Márquez Luque try these images https://github.com/NickAlilovic/build/releases/tag/20250306

@Bob-the-great try these images https://github.com/NickAlilovic/build/releases/tag/20250306