Build Procedure¶

Extract the r01an7861ej0300-rzg3e-ethosu.zip source package and prepare the rz-ethos-u directory.

unzip r01an7861ej0300-rzg3e-ethosu.zip -d r01an7861ej0300-rzg3e-ethosu
cd r01an7861ej0300-rzg3e-ethosu/
unzip Linux_Software_Package.zip -d Linux_Software_Package
cd Linux_Software_Package/
unzip rz-ethos-u-v3.0.zip -d rz-ethos-u
cd rz-ethos-u/

Build Using Kas MenuBuild Using Kas Configuration Fragments

In the project directory, load the Kas Menu.
```
./kas-container menu
```
Kas Menu Screen
Select the build configuration.
- Using the (↑/↓) arrow keys, navigate between the Target, Machine and Features options.
- The spacebar/enter buttons can be used to select an option.
- To switch and control the bottom red options, either use the (←/→) arrow keys or the tab key.
Once the configuration has been selected, the build can be kicked off immediately by selecting the Build option.
Or the configuration can be saved using the Save & Exit option.

If the configuration is saved, there are 2 ways to start a build using the generated configuration.

Interactive build: Kas opens a shell within its build environment, already configured to use bitbake.
```
./kas-container shell
```
Non-interactive build: Immediately starts the build.
```
./kas-container build
```

The following Kas configuration fragments are supplied in the rz-ethos-u project.

Configuration File	Purpose
`kas/base.yml`	Base configuration used by the project.
`kas/images/core-image-minimal.yml`	Configuration for building core-image-minimal.
`kas/images/core-image-weston.yml`	Configuration for building core-image-weston.
`kas/machines/smarc-rzg3e.yml`	Configuration for building smarc-rzg3e.
`kas/features/codecs.yml`	Enables H.264 and H.265 video codec library support.
`kas/features/graphics.yml`	Enables graphics library support.

core-image-minimalcore-image-weston (without codecs/graphics libraries)core-image-weston (with codecs/graphics libraries)

To build image:

./kas-container build --update --force-checkout "kas/base.yml:kas/images/core-image-minimal.yml:kas/machines/smarc-rzg3e.yml"

To build image:

./kas-container build --update --force-checkout "kas/base.yml:kas/images/core-image-weston.yml:kas/machines/smarc-rzg3e.yml"

To build image:

./kas-container build --update --force-checkout "kas/base.yml:kas/images/core-image-weston.yml:kas/machines/smarc-rzg3e.yml:kas/features/codecs.yml:kas/features/graphics.yml"