~~tag>VIM4 uboot~~
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====== VIM4 Build U-Boot ======


You can build Ubuntu OS images easily via the link [[kg>Fenix]].Here are the steps how to build U-Boot.

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

Choose your ''board'' (e.g. ''VIM4''), ''U-Boot version'', ''Linux version'', or ''system version'',the correct version for your requirements. 

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

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

Build U-Boot with a single command:

```shell
$ make uboot
```

The binaries are located in ''build/u-boot/fip/_tmp''. choose ''u-boot.bin.sd.bin.signed'', ''u-boot.bin.signed'', ''u-boot.bin.spi.bin.signed''.

  * ''u-boot.bin.sd.bin.signed'' - flashing to the **SD card**
  * ''u-boot.bin.signed'' - flashing to the **eMMC**

===== 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. ''1.0.11''\\
**BOARD** : refers to the Khadas SBC, e.g. ''VIM4''

The folder location is ''build/images/debs/1.0.11/VIM4'', 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-vim4-vendor_1.0.11-2019.01_arm64.deb''

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

[[kg>u-boot/tree/khadas-vims-v2019.01|U-Boot for VIM4]], the branch is ''khadas-vims-v2019.01''.

===== See Aslo =====

  * [[products:sbc:vim4:configurations:upgrade-linux-uboot]]
  * [[products:sbc:vim4:development:linux:build-linux-kernel]]
  * [[products:sbc:vim4:development:linux:build-ubuntu]]