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user and also allows to easily build for multiple machines without modifying a file in-between.
The build process can take several hours depending on the capabilities of the build machine and the user's Internet connection.
Note: If the Bitbake process needs to be stopped for any reason, a
(
+ ) signal can be sent once. Bitbake will
gracefully close down upon reception of this signal. This graceful shutdown can take a lot of time depending on the tasks that
are currently being executed. It is highly recommended to not send this signal more than once, failing to do so may hinder
next Bitbake commands.
The artefacts can be found after some time in
directory. A flashable
image is one whose extension is
, e.g.
.
Make the resulting image available for later steps:
6.6 Flashing an SD card with
To flash the image on an SD card, bmaptool can be used, it is both faster and safer than a traditional
as used in Section 7.1
Deploy on SD Card. For that, the
companion file, built by the Yocto Project and found in the same directory as
the
artefact, should be in the same directory as the
artefact. Then run the following command, with
replaced by the block device representing the user's SD card:
6.7 Building with
kas is a setup tool for Bitbake-based projects, such as the Yocto Project, which aims to replace the commands listed above for
a simpler, more automated, setup and creation of images.
Theobroma Systems provides a
configuration file
in the BSP meta layer for convenience.
can be installed on the build machine with the following command:
Note: It is also available as a Python package and installable with:
The Section 6.3 Initial setup and Section 6.4 Initializing build environment can then be replaced by the following two commands:
The Section 6.5 Building a minimal image can now be replaced with:
Note:
is also available in an OCI container form on GitHub container registry. Theobroma Systems uses this container
for automated building of images within Jenkins. It is started the following way:
PX30-uQ7 User Manual
v1.0.1-8-g2dd91c8
© Theobroma Systems Design und Consulting GmbH
Page 25
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