MSC SM2S-IMX8MINI 70 / 87
User Manual
Depending on the internet connection and the development host a first build may take several hours. To speed it up on further installations, share the
directories downloads and sstate-cache. All generated images can be collected in a specific directory with:
user@devhost:msc-ldk$ make install_images DESTDIR=/tmp/msc-ldk-images
7.2.4.3 Reproduce Images with MSC-LDK
One of the key features of Yocto is the strong versioning of the resulting images. Each package uses a predefined version, e.g. busybox 1.32.0. When
compiling an image, yocto also prints the used GIT layer versions (see Fehler! Verweisquelle konnte nicht gefunden werden.)
For further improvement, MSC-LDK has these additional features to recreate the image after it has been built and shipped:
• The used layers and the setup line how the BSP was configured is stored in the image’s file /etc/version_layer. After compilation, the file can
be also found in the build directory under:
tmp/work/sm2s_imx8mm_qc-poky-linux/msc-image-base/1.0-r0/rootfs/etc/
Figure 7-15. Content of ‘version_layer’ file.
• The setup tool allows to checkout exactly these layers and configure the BSP as before. To use it, call setup.py with only one argument --
version-file, e.g.
./setup.py --version-file ~/version_layer
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