Yocto - Revision history

Savoundg at 03:00, 27 December 2022

2022-12-27T03:00:00Z

← Older revision		Revision as of 03:00, 27 December 2022
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	=== How to find which package installed a specific file in the sysroot? ===		=== How to find which package installed a specific file in the sysroot? ===
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	oe-pkgdata-util find-path /path/to/file		$ oe-pkgdata-util find-path /path/to/file
	</syntaxhighlight>		</syntaxhighlight>

2022-12-27T02:59:07Z

← Older revision		Revision as of 02:59, 27 December 2022
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	</syntaxhighlight>		</syntaxhighlight>

			==== Local git repository ====
			In the case of local git repository, the protocol should be '''file''' and the address should be the path the git repository.
			<syntaxhighlight lang="bash">
			SRCREV = "${AUTOREV}"
			SRC_URI = "git:///path/to/git/repo;protocol=file;branch=master"
			</syntaxhighlight>
	=== How to use ${S}? ===		=== How to use ${S}? ===
	'''${S}''' is the source directory. When you deal with a git repository: '''S''' should be set to '''"${WORKDIR}/git"''' as follow:<syntaxhighlight lang="python">		'''${S}''' is the source directory. When you deal with a git repository: '''S''' should be set to '''"${WORKDIR}/git"''' as follow:<syntaxhighlight lang="python">

2022-12-27T02:23:06Z

← Older revision		Revision as of 02:23, 27 December 2022
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	BUILDHISTORY_RESET=1		BUILDHISTORY_RESET=1
			</syntaxhighlight>


			=== How to find which package installed a specific file in the sysroot? ===
			<syntaxhighlight lang="bash">
			oe-pkgdata-util find-path /path/to/file
	</syntaxhighlight>		</syntaxhighlight>

2020-11-26T02:06:07Z

← Older revision		Revision as of 02:06, 26 November 2020
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	Define the following variable as follow in the appropriate recipe (machine configuration, kernel recipe bbappend, local.conf):<syntaxhighlight>		Define the following variable as follow in the appropriate recipe (machine configuration, kernel recipe bbappend, local.conf):<syntaxhighlight>
	RDEPENDS_${KERNEL_PACKAGE_NAME}-base = ""		RDEPENDS_${KERNEL_PACKAGE_NAME}-base = ""
			</syntaxhighlight>

			=== How to fix version-going-backwards packaging error? ===
			This error is triggered by the buildhistory feature that detected that the version went backward. Reset the build history before running again the bitbake command as follow to fix it:<syntaxhighlight lang="bash">
			export BB_ENV_EXTRAWHITE="$BB_ENV_EXTRAWHITE BUILDHISTORY_RESET"

			BUILDHISTORY_RESET=1
	</syntaxhighlight>		</syntaxhighlight>

2020-06-23T17:07:38Z

How to rebuild the images?

← Older revision		Revision as of 17:07, 23 June 2020
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	</syntaxhighlight>		</syntaxhighlight>

	=== How to rebuild ~~the~~ images? ===		=== How to rebuild images? ===
	~~The~~ images are in <code>tmp/deploy/images/${MACHINE}/</code>.		Built images are in <code>tmp/deploy/images/${MACHINE}/</code>.

	After removing all files from this directory, you have to clean all the recipes that have deployed images in this folder. For instance, ''virtual/kernel'', ''u-boot'', and the recipe that have generated the root file system such as ''core-image-minimal'' are good candidates for that. Then, you can rebuild the images as follow:<syntaxhighlight lang="shell">		After removing all files from this directory, you have to clean all the recipes that have deployed images in this folder. For instance, ''virtual/kernel'', ''u-boot'', and the recipe that have generated the root file system such as ''core-image-minimal'' are good candidates for that. Then, you can rebuild the images as follow:<syntaxhighlight lang="shell">

2020-06-08T18:04:03Z

How to define new custom image type?[4]

← Older revision		Revision as of 18:04, 8 June 2020
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	# add tools needed in the IMAGE_CMD_foo function		# add tools needed in the IMAGE_CMD_foo function
	do_image_foo[depends] += "mtd-utils-native:do_populate_sysroot""		do_image_foo[depends] += "mtd-utils-native:do_populate_sysroot"

	IMAGE_TYPES += "foo"		IMAGE_TYPES += "foo"

2020-06-08T17:52:03Z

How to define new custom image type?[4]

← Older revision		Revision as of 17:52, 8 June 2020
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	# add tools needed in the IMAGE_CMD_foo function		# add tools needed in the IMAGE_CMD_foo function
	~~do_image_verity~~[depends] += "mtd-utils-native:do_populate_sysroot""		do_image_foo[depends] += "mtd-utils-native:do_populate_sysroot""

	IMAGE_TYPES += "foo"		IMAGE_TYPES += "foo"

2020-05-09T02:11:19Z

← Older revision		Revision as of 02:11, 9 May 2020
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	=== How to generate an SDK? ===		=== How to generate an SDK? ===
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	$ bitbake core-image-minimal –c ~~populate-sdk~~		$ bitbake core-image-minimal –c populate_sdk
	</syntaxhighlight>To add new headers or libraries in the SDK, juste write a .bbappend file for the recipe <code>poky/meta/recipes-core/packagegroups/packagegroup-core-standalone-sdk-target.bb</code>.		</syntaxhighlight>To add new headers or libraries in the SDK, juste write a .bbappend file for the recipe <code>poky/meta/recipes-core/packagegroups/packagegroup-core-standalone-sdk-target.bb</code>.

2020-03-18T20:39:48Z

← Older revision		Revision as of 20:39, 18 March 2020
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			</syntaxhighlight>

			=== How to prevent automatic installation of the kernel image in the rootfs? ===
			Define the following variable as follow in the appropriate recipe (machine configuration, kernel recipe bbappend, local.conf):<syntaxhighlight>
			RDEPENDS_${KERNEL_PACKAGE_NAME}-base = ""
	</syntaxhighlight>		</syntaxhighlight>

2018-10-30T19:29:23Z

How to add users, change password?

← Older revision		Revision as of 19:29, 30 October 2018
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	"		"
	</syntaxhighlight>Be careful, if you want to use the $ symbol, you have to double-escape it as follow: \\\$.		</syntaxhighlight>Be careful, if you want to use the $ symbol, you have to double-escape it as follow: \\\$.
	* add the user '''bar''' in the group '''igloo''' with the password '''foo''':		* add the user '''bar''' in the group '''igloo''' with the password '''foo''':<syntaxhighlight lang="bash">

	~~=== How to install package to a core-image-minimal image? ===~~
	~~In the ''conf/local.conf'' or in any recipe, add the package you want to install in '''CORE_IMAGE_EXTRA_INSTALL'''.~~ <syntaxhighlight lang="bash">
	EXTRA_USERS_PARAMS += " \		EXTRA_USERS_PARAMS += " \
	useradd -P foo -g igloo bar; \		useradd -P foo -g igloo bar; \
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	</syntaxhighlight>		</syntaxhighlight>

			=== How to install package to a core-image-minimal image? ===
			In the ''conf/local.conf'' or in any recipe, add the package you want to install in '''CORE_IMAGE_EXTRA_INSTALL'''.
	=== How to write variable-dependant string? ===		=== How to write variable-dependant string? ===
	In a recipe or in class, you can use <code>bb.utils.contains</code>:		In a recipe or in class, you can use <code>bb.utils.contains</code>:
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	== References ==		== References ==
			<references />