We provided Fenix for you to build the Ubuntu OS images easily. You can follow the steps bellow to build Linux Kernel.

Choose your board (e.g. Edge), U-Boot version, Linux version, system version, etc.

$ source setenv.sh

Follow these steps to change the default kernel configuration.

$ make kernel-config
$ make kernel-saveconfig

Build the Linux Debian package.

$ make kernel
$ make kernel-deb

Debian packages are in folder build/images/debs/{VERSION}/{BOARD}.

• VERSION : refers to the Fenix version, e.g. 1.1.1
• BOARD : refers to the Khadas SBC, e.g. Edge2

The folder location is build/images/debs/1.1.1/Edge2, and you'll need 3 packages: dtb package, image package and header package.

• DTB - linux-dtb-rockchip-5.10_1.1.1_arm64.deb
• Image - linux-image-rockchip-5.10_1.1.1_arm64.deb
• Header - linux-headers-rockchip-5.10_1.1.1_arm64.deb

• Build U-Boot.
• Build Ubuntu.
• Upgrade Linux Kernel