I tried btrfs file system on Ubuntu with kernel 5.10.66-27-rockchip-gea60d388902d
sudo apt install btrfs-progs -y
sudo mknod /dev/btrfs-control c 10 234`sudo modprobe btrfs
modprobe: FATAL: Module btrfs not found in directory /lib/modules/5.10.66-27-rockchip-gea60d388902dsudo mkfs.btrfs /dev/mapper/crypt_raspi
WARNING: failed to open /dev/btrfs-control, skipping device registration: No such device
Any suggestion how to create btrfs partiotion?