Yocto

Title

Table of Contents

bitbake command	Description
bitbake <package> -c <task>	Execute a particular package’s task. Default Tasks names: fetch, unpack, patch, configure, compile, install, package, package_write, configme, kernel_configcheck, compile_kernelmodules, clean, cleanall, cleansstate, and build, listtasks, populate_sysroot. Example: To (force) compiling a kernel and then build, type: $ bitbake linux-imx -f -c compile $ bitbake linux-imx
bitbake <image>	Bake an image (add -k to continue building even errors are found in the tasks execution)
bitbake <image > -g -u depexp	Show the package dependency for image. Example: To show all packages included on fsl-image-gui $ bitbake fsl-image-gui -g -u depexp NOTE: This command will open a UI window, so it must be execute on a console inside the host machine (either virtual or native).
bitbake <package> -c devshell	Open a new shell where with neccesary system values already defined for package
hob	bitbake frontend/GUI.
bitbake <package> -c listtasks	List all tasks for package
bitbake virtual/kernel -c menuconfig	Interactive kernel configuration
bitbake <image> -c fetchall(or --runall=fetch)	Fetch sources for a particular image
bitbake-layers show-layers	Show layers
bitbake-layers show-recipes "-image-"	Show possible images to bake. Without "-images-", it shows ALL recipes
bitbake –v <image> 2>&1	tee image_build.log

add this lines to file [your_yocto_build_dir]/conf/local.conf
```
BB_NUMBER_THREADS = "2"
PARALLEL_MAKE = "-j 2"
```
run command source setup-environment ./your_build_folder