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====== Edge2 Build Linux Kernel ======

===== Ubuntu =====


We provided [[kg>fenix|Fenix]] for you to build the Ubuntu OS images easily. You can follow the steps bellow to build Linux Kernel.


==== Setup Environment ====

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

```shell
$ source setenv.sh
```

==== Change the Kernel Config [Optional] ====


Follow these steps to change the default kernel configuration.

```shell
$ make kernel-config
$ make kernel-saveconfig
```

==== Build ====

Build the Linux Debian package.

```shell
$ 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

==== See Also ====

  * [[products:sbc:edge2:development:linux:build-linux-uboot|Build U-Boot]].
  * [[products:sbc:edge2:development:linux:build-ubuntu|Build Ubuntu]].
  * [[products:sbc:edge2:configurations:upgrade-linux-kernel|Upgrade Linux Kernel]]