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Yocto tips and tricks

Bitbake

Command	Description
`hob`	bitbake frontend/GUI.
`bitbake-layers show-recipes “-image-”`	Show possible images to bake. Without “-images-”, it shows ALL recipes
`bitbake-layers show-layers`	Show layers
`bitbake –v <image> 2>&1`	tee image_build.log Print (on console) and store verbose baking
`bitbake virtual/kernel -c menuconfig`	Interactive kernel configuration
`bitbake <package> -c devshell`	Open a new shell where with neccesary system values already defined for package
`bitbake <package> -c listtasks`	List all tasks for package
`bitbake <package> -c <task>`	Execute a particular package's task. Default Tasks names: fetch, unpack, patch, configure, compile, install, package, package_write, and build.
`bitbake <image> -c fetchall`	Fetch sources for a particular image
`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.
`bitbake -s \| grep <pkg>`	Check if certain package is present on current Yocto Setup
`bitbake -g <pkg> && cat pn-depends.dot \| grep -v -e '-native' \| grep -v digraph \| grep -v -e '-image' \| awk '{print $1}' \| sort \| uniq`	Show package's dependencies
`bitbake -g <image> && cat pn-depends.dot \| grep -v -e '-native' \| grep -v digraph \| grep -v -e '-image' \| awk '{print $1}' \| sort \| uniq\|`	Show image's packages

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).

Example: To (force) compiling a kernel and then build, type:

$ bitbake  linux-imx -f -c compile
$ bitbake linux-imx