***************************************************************************************************************************** Flashing the YOCTO Images into Openboard-AM335x *************************************************************************************************************************** booting from NAND : ****************** Power up the board, and stop at bootloader by pressing any key. copy all images in SD card $ mount /dev/disk0.0 /mnt $ cd /mnt $ erase /dev/nand0 $ cp MLO /dev/nand0.xload.bb $ cp barebox.bin /dev/nand0.barebox.bb $ cp zImage /dev/nand0.kernel.bb $ cp oftree /dev/nand0.oftree.bb $ ubiformat /dev/nand0.root $ ubiattach /dev/nand0.root $ ubimkvol /dev/ubi0 root 0 $ cp phytec-qt5demo-image-phycore-am335x-1.ubifs /dev/ubi0.root Then board will boot from NAND, and on the LCD QT5 demo will run.. ********* END OF THE NAND BOOT PROCEDURE ******* booting from net : ****************** cp zImage /var/lib/tftpboot cp oftree /var/lib/tftpboot Now extract the root file system to /nfsroot ********* END OF THE NET BOOT PROCEDURE ******* booting from MMC : ****************** Insert the new MMC/SD card into HOST-PC. Umount the sdcard by using below command $ umount /dev/sdX ( here X is your sd card partion .'. eg : /dev/sdb ) Then give the below command to extract into sdcard. $ sudo dd if=phytec-qt5demo-image-phycore-am335x-1.sdcard of=/dev/sdb bs=1MB After completing this, please remove the sdcard. Insert the sdcard into TARGET-Board , Set the jumper jp3 settings. Then power up the board. on the LCD QT5 demo will run.. ********* END OF THE MMC BOOT PROCEDURE ******* Known issue : May be bootlader won't work properly with booting from MMC. you can bootloader from NAND. then you can give below command to boot from mmc $ boot mmc (or) boot sd-ext3 If any other issues Please fell free to contact us. *********** ALL THE BEST ***********