What is VirtualBox and How to install VirtualBox on Ubuntu ?

What is Virtualbox ? Oracle VM VirtualBox is a cross-platform virtualization application. It installs on your existing Intel or AMD-based computers, whether they are running Windows, Mac OS X, Linux, or Oracle Solaris operating systems (OSes). Secondly, it extends the capabilities of your existing computer so that it can run multiple OSes, inside multiple virtual … Read more

How to install docker on 32 bit Ubuntu ?

If you want to install docker on ubuntu, follow below procedure, $ sudo apt install docker.io $ sudo docker run –rm -it i686/ubuntu bash root@acac0f429e2e:/# Above two commands will install docker on 32 bit ubuntu and start the container, we can check the status as, $ sudo docker ps -l CONTAINER ID IMAGE COMMAND CREATED … Read more

Solved – QA Issue: Files/directories were installed but not shipped in any package

If you are compiling some recipe which you have written recently, you might seen an error like below, [ here example recipe is predefine_0.1.bb, which was a simple recipe to add precompiled helloworld binary to filesystem. Solution : Open the respective bitbake recipe, in our case its “metadata/meta-lynxbee/recipes-example/predefined/predefine_0.1.bb” and add/modify/append below lines as, FILES_${PN} = … Read more

Bitbake / Yocto recipes for cross compiling golang program

For compiling simple golang helloworld program as part of yocto build framework, we need to download meta-golang from https://github.com/madisongh/meta-golang and use this meta layer along with poky to build our written bitbake recipes for cross compilation of golang program. PLEASE NOTE: Starting with OE-Core ‘rocko’ (Yocto Project 2.4), Go support is available directly in OE-Core, … Read more

Modifying bitbake/yocto initscripts to start wifi during boot

We will need to change the wpa-supplicant.conf file as below, by modifying poky/meta/recipes-connectivity/wpa-supplicant/wpa-supplicant/wpa_supplicant.conf-sane Now, once we modified wpa_supplicant configuration files, we need to create an script which will start the wpa_supplicant application which uses this conf file to connect to WiFi access point. $ vim poky/meta/recipes-core/initscripts/initscripts-1.0/start-wifi.sh As you can see above, if you don’t have … Read more

How to Install Java using apt-get command on Ubuntu ?

Installing JAVA on ubuntu can be done using following easiest command. for ubuntu 16.04, this command installs OpenJDK 8 as we can see details in additional packages installed. $ sudo apt-get install default-jdk The following additional packages will be installed:ca-certificates-java default-jdk-headless default-jre default-jre-headless fonts-dejavu-extra java-common libgif7 libice-dev libpthread-stubs0-dev libsm-dev libx11-6 libx11-dev libx11-doc libxau-devlibxcb1-dev libxdmcp-dev libxt-dev … Read more

Use local mirror to build yocto file system from internal server

As we have seen in “Configure yocto to download from local mirror to save bandwidth” one way to setup your local server to build yocto is to modify PREMIRRORS and MIRRORS arguments permanantly in conf/distro/my_platform.conf but if we want to change between local mirrors for some reason, instead of changing distro configurations we can override … Read more