Yocto-BBB

27/06/2025 · A cheat sheet for the Yocto-BBB series: what Yocto, Poky, OpenEmbedded, BitBake, recipes and layers are, reference documents, and the Yocto and Linux commands used most often.

28/06/2025 · Setting up an Ubuntu 22.04 host, cloning Poky Scarthgap with meta-openembedded, meta-arm and meta-ti, building core-image-minimal for MACHINE beaglebone, and flashing the .wic.xz with bmaptool.

05/07/2025 · Connecting a PL2303 USB-UART adapter to the BeagleBone Black and opening it with screen, then how .bbappend files and layer priority work, with a three-layer example and the ?=, ??=, := and += operators.

12/07/2025 · Creating the meta-bbb layer and a core-image-minimal.bbappend that inherits extrausers and sets a hashed root password with EXTRA_USERS_PARAMS.

19/07/2025 · Where the "Poky (Yocto Project Reference Distro)" login text comes from (DISTRO_NAME into /etc/issue) and how to replace it with your own distro conf in meta-bbb.

26/07/2025 · Showing a custom banner with uptime, hostname, disk and memory after login via /etc/profile.d, packaging the script in a custom-banner recipe, and resizing the root partition of the wic image.

02/08/2025 · A custom-image recipe with dhcpcd, iproute2, iputils and openssh for Ethernet and SSH, then the extra packages (bash, tar, xz, procps, coreutils, curl, libstdc++, libatomic) that VS Code Remote-SSH needs.

09/08/2025 · Checking Linux compatibility of a TP-Link WN722N v2, writing an rtl8188eu kernel module recipe (license, SRC_URI, SRCREV, inherit module, autoload), then connecting to wifi with wpa_supplicant and SSH.

16/08/2025 · Adding gcc, nano and i2c-tools to the image, confirming which I2C bus is enabled from the AM335x memory map, detecting the SSD1306 with i2cdetect and printing text from a small C program.

23/08/2025 · devtool add, modify and finish for the ssd1306 recipe and what the workspace layer does, creating a git patch and applying it through SRC_URI, and installing the resulting .ipk on a running board with opkg.

30/08/2025 · Why boot the BeagleBone Black from eMMC, the lazy way (wipe the eMMC so it falls back to the SD card), and the proper way: partition, format and copy the rootfs and boot files to eMMC, then fix fstab and extlinux.conf.

20/09/2025 · Comparing SD card, SCP, TFTP and UART for getting files onto a board, configuring minicom, adding lrzsz to the image, and sending files with ZMODEM using rz.

27/09/2025 · What TFTP is, adding tftp-hpa to the image (and the meta-networking and meta-python layers it needs), static IPs over a direct Ethernet cable, setting up tftpd-hpa on the host and getting/putting files from the board.

04/10/2025 · Getting Weston running on the BeagleBone Black: systemd, downgrading to Weston 8.0 from dunfell, a weston.service with XDG_RUNTIME_DIR, the Adwaita cursor theme and libinput, plus the debugging path that led there.

11/10/2025 · Remote desktop into core-image-sato on the BeagleBone Black with xrdp and xorgxrdp: systemd, PAM and X11 distro features, RSA keys, a startwm.sh session script and xfreerdp from the host, with each step explained.

18/10/2025 · Finding where psplash gets its splash image in Poky, generating a psplash image header from your own PNG with make-image-header.sh, and rebuilding a GUI image for the BeagleBone Black.

22/11/2025 · What ADB is useful for outside Android, building android-tools adbd into a Yocto image for the BeagleBone Black, fixing the usb-debugging condition, and forwarding SSH over the USB cable for VS Code.

17/01/2026 · Adding the links-x11 browser to core-image-sato on the BeagleBone Black, powering a screen and USB wifi at the same time, fixing DNS name resolution, and browsing with and without the GUI.

31/03/2026 · What a recipe-sysroot is, building a tiny example recipe, running its ARM binary under QEMU user mode as a gdb server, and debugging it from VS Code with gdb-multiarch on the laptop without any hardware.

11/04/2026 · Serving a sstate-cache folder over HTTP with nginx, pointing another machine at it with SSTATE_MIRRORS and a hash equivalence server, and what OEEquivHash changes compared with OEBasicHash.

20/06/2026 · What changed in Yocto 6.0 Wrynose (no more poky repo, layers cloned side by side, nodistro by default) and the steps to build for MACHINE beaglebone with openembedded-core, meta-ti and meta-arm.