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====== Edge2 Build Linux U-Boot ======


We provided [[kg>Fenix]] for you to build the Ubuntu OS images easily. You can follow the steps bellow to build U-Boot.

===== Setup Environment =====

Choose your ''board'' (e.g. ''Edge2''), ''U-Boot version'', ''Linux version'', ''system version'', etc.

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

Choose the correct version for your requirements.

===== Build U-Boot =====

Build U-Boot with a single command:

```shell
$ make uboot
```

The binaries are located in U-Boot source code root directory. You'll need ''uboot.img'' and ''rk3588_spl_loader_vx.xx.xxx.bin''.

  * ''uboot.img'' - U-Boot image.
  * ''rk3588_spl_loader_vx.xx.xxx.bin'' - SPL loader image, ''x.xx.xxx'' means version, e.g. ''1.07.111''

===== Build U-Boot Debian package =====

You can also choose the Debian U-Boot package:

```shell
$ make uboot-deb
```

Debian packages are located in ''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 the Debian U-Boot package is ''linux-u-boot-xxx-xxx_xxx-xxx_arm64.deb''.

  * SoC Vendor Debian U-Boot package: ''linux-u-boot-edge2-vendor_1.0.11-2017.09_arm64.deb''

===== About U-Boot Source Code =====

[[kg>u-boot/tree/khadas-edges-v2017.09|U-Boot for Edge2]], the branch is ''khadas-edges-v2017.09''.

===== See also =====

  * [[products:sbc:edge2:configurations:upgrade-linux-uboot]]
  * [[products:sbc:edge2:development:linux:build-linux-kernel]]
  * [[products:sbc:edge2:development:linux:build-ubuntu]]