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====== VIM3/3L 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. ''VIM3''), ''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 ''build/u-boot/fip/_tmp''. You'll need ''u-boot.bin.sd.bin'', ''u-boot.bin'', and ''u-boot.bin.spi.bin''.

  * ''u-boot.bin.sd.bin'' - for flashing to the **SD card**
  * ''u-boot.bin'' - for flashing to the **eMMC**
  * ''u-boot.bin.spi.bin'' - for flashing to the **SPI Flash**

===== 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. ''VIM3''

The folder location is ''build/images/debs/1.0.11/VIM3'', 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-vim3-vendor_1.0.11-2015.01_arm64.deb''

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

[[kg>u-boot/tree/khadas-vims-v2015.01|U-Boot for VIM3]], the branch is ''khadas-vims-v2015.01''.

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

[[products:sbc:vim3:configurations:upgrade-linux-uboot|Upgrade U-Boot]].\\
[[products:sbc:vim3:development:linux:build-linux-kernel|Build Linux Kerenl]].\\
[[products:sbc:vim3:development:linux:build-ubuntu|Build Ubuntu]].
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