If you want to have WiFi integrated with yocto root filesystem, follow below mentioned steps, Open file, meta-mylayer/images/mydistro-image.bb and add below mentioned line, DISTRO_FEATURES += “wifi” This will add wifi into the root filesystem but unless you have a proper network manager and UI, you will not be able to connect to internet. So, we … Read more
Recently we faced some issues with locale and when debugged using strace it shows following error open(“/usr/share/X11/locale/locale.alias”, O_RDONLY) = -1 ENOENT (No such file or directory) open(“/usr/share/X11/locale/locale.dir”, O_RDONLY) = -1 ENOENT (No such file or directory) open(“/usr/share/X11/locale/locale.alias”, O_RDONLY) = -1 ENOENT (No such file or directory) open(“/usr/share/X11/locale/locale.dir”, O_RDONLY) = -1 ENOENT (No such file or … Read more
Recently while debugging some issues we found that we were missing timezone related files into yocto root filesystem, the debugging with strace shown the following error, open(“/usr/share/zoneinfo/UTC”, O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) The poky has a recipe for compiling the relevant files at poky/meta/recipes-extended/tzdata/ hence you can use below command to … Read more
If your are compiling a yocto rootfs and at the very end of compilation, you might face an QA error while creating the final rootfs, which could look like below, ERROR: QA Issue: File ‘/usr/lib/libqwt.so.6.0.1’ from qwt was already stripped, this will prevent future debugging! [already-stripped] To fix this error, Add INSANE_SKIP_${PN}_append = “already-stripped” to … Read more
When trying to add new packages to your root file system image, we need to identify what are packages supported / generated by the bitbake recipe because Root file system images are created from packages. $ bitbake -e dropbear | grep ^PACKAGES= PACKAGES=”dropbear-dbg dropbear-staticdev dropbear-dev dropbear-doc dropbear-locale dropbear” Looking at this output, it becomes clear … Read more
Created a new image recipe like below and named it as, recipes-images/images/lynxbee-core-image-minimal.bb ————————————————————- inherit extrausersSUMMARY = “A small image just capable of allowing a device to boot.” IMAGE_INSTALL = “packagegroup-core-boot ${ROOTFS_PKGMANAGE_BOOTSTRAP} ${CORE_IMAGE_EXTRA_INSTALL}” IMAGE_LINGUAS = ” “ LICENSE = “MIT” inherit core-image IMAGE_ROOTFS_SIZE ?= “8192” EXTRA_USERS_PARAMS = “\ useradd -P password124 lynxbee; \ usermod -P password124 … Read more
$ recipetool -d create -o dropbear_2015.68.bb https://dropbear.nl/mirror/dropbear-2015.68.tar.bz2DEBUG: Found bitbake path: ~/Desktop/devlab/poky/bitbakeNOTE: Fetching https://dropbear.nl/mirror/dropbear-2015.68.tar.bz2…DEBUG: unable to extract library name from ld-linux.so.3NOTE: Recipe dropbear_2015.68.bb has been created; further editing may be required to make it fully functional. ————————————————— Now, if we open a newly automatically created recipe, it will be something like below & you can then … Read more
The yocto-layer script simplifies creating a new general layer. The default mode of the script’s operation is to prompt you for information needed to generate the layer: The layer priority. Whether or not to create a sample recipe. Whether or not to create a sample append file. Use the yocto-layer create sub-command to create a … Read more
Below commands shows a ways to create a bitbake recipe using yocto scripts, $ git clone git://git.yoctoproject.org/poky $ cd poky $ cd scripts $ ./create-recipe -r http://www.busybox.net/downloads/busybox-1.23.2.tar.bz2 Downloading package: http://www.busybox.net/downloads/busybox-1.23.2.tar.bz2Unpacking to : /tmp/7r_bmRisurParsing content ….Can NOT get license from package source files.Please update the LICENSE and LIC_FILES_CHKSUM manually.Create bb file: ~/poky/scripts/busybox/busybox_1.23.2.bb Now, if you open … Read more
Create a Directory: Create the directory for your layer. While not strictly required, prepend the name of the folder with the string meta- . For example: meta-mylayermeta-GUI_xyzmeta-mymachine Lets say we want to create, meta-mylayer as name of custom layer. $ mkdir meta-mylayer Create a Layer Configuration File: Inside your new layer folder, you need to create a conf/layer.conf … Read more
