Instruction how to build an image for Jupiter Nano in Yocto
Products:
Jupiter Nano based on SAMA5D27C-LD1G (Cortex-A5)
General Note:
Assumed that Linux Ubuntu 20.04 or higher is installed
List of tested elements
Nothing currently
List of not tested elements
Nothing currently
How to build images
- First, make sure to following packages are installed in the system
sudo apt-get install gawk wget diffstat unzip texinfo gcc-multilib build-essential chrpath socat libsdl1.2-dev xterm libgmp3-dev libmpc-dev
Note: More information can be found on the Yocto reference manual.
2. Download the necessary Yocto packaged listed below. Be sure to be at the root of the home folder.
mkdir yocto cd yocto mkdir build git clone git://git.yoctoproject.org/poky --depth 1 -b dunfell cd poky git clone git://git.openembedded.org/meta-openembedded --depth 1 -b dunfell git clone https://github.com/meta-qt5/meta-qt5.git --depth 1 -b dunfell git clone git@github.com:voloviq/meta-jupiternano.git --depth 1 -b dunfell
3. Select directory to build LinuxNano version
source oe-init-build-env ~/yocto/build/jupiternano
4. Modify bblayers.conf(located in ~/yocto/build/jupiternano/conf)
BBLAYERS ?= ” \
${HOME}/yocto/poky/meta \
${HOME}/yocto/poky/meta-poky \
${HOME}/yocto/poky/meta-openembedded/meta-oe \
${HOME}/yocto/poky/meta-openembedded/meta-networking \
${HOME}/yocto/poky/meta-openembedded/meta-python \
${HOME}/yocto/poky/meta-qt5 \
${HOME}/yocto/poky/meta-jupiternano \
„
Note: Please adapt PATH of conf/bblayers.conf if necessary.
5. Modify local.conf(located in ~/yocto/build/jupiternano/conf) file
modify line with „MACHINE ??” to add „jupiternano”
align DL_DIR = „${HOME}/yocto/downloads”
align SSTATE_DIR = „${HOME}/yocto/sstate-cache”
align TMPDIR = „${HOME}/yocto/tmp”
add at the end following records
RM_OLD_IMAGE = „1”
INHERIT += „rm_work”
Note: Please adapt the rest of conf/local.conf parameters if necessary.
6. Build objects
console image
bitbake console-image
qt5 image
bitbake qt5-image
qt5 toolchain sdk
bitbake meta-toolchain-qt5
7. After compilation images appears in Nano version
~/yocto/tmp/deploy/images/jupiternano
8. Insert SD CARD into dedicated CARD slot and issue the following command to write an image
Note:
Be 100% sure to provide a valid device name (of=/dev/sde/mmcblk0). Wrong name „/dev/sde/mmcblk0” dameage Your system file !
Jupiter Nano version
sudo dd if=~/yocto/tmp/deploy/images/jupiternano/qt5-image-jupiter-nano.wic of=/dev/mmcblk0 bs=1024