AnsweredAssumed Answered

I.MX8M SD Card Configuration

Question asked by Joshua Eng on Jul 1, 2019
Latest reply on Jul 3, 2019 by Joshua Eng

Hi, I have a DART-MX8M that is using NXP i.MX8M Evaluation Kit and I have just finished building an image using Yocto with bitbake fsl-image-qt5-validation-imx. I am new to Yocto, but from my understanding I should be able to use the .sdcard image file that is generated in the deploy directory to have a fully ready SD card that I can use for the hardware. I ran the command "sudo dd if=fsl-image-qt5-validation-imx-imx8m-var-dart.sdcard of=/dev/sdb bs=1M && sync" and it created the partition for the root file system on the SD card. It looks like it created the offsets for the U-boot, but to my understanding it should have made the partition after running the command? 

Now after trying to boot the board using the SD card, I set the boot select switch SW7 to the SD side, but when I turn on the board nothing shows up on the screen via the hdmi port. I can tell that it is "running" because I can ping the board to see if packets can be sent/received to it (am unsure if this is a good test). I have never been able to run this board from SD card yet so am unsure if this is normal. Do I have to use putty to run the configuration on the board once it is powered on or should I be expecting something on the screen? 


Other question, do I have to setup each of these partitions manually if using the .sdcard image file does not work?


Another test that I tried running was the SD card recovery image file that was found at . I ran the same dd command and tried booting the sd card on the board, but still the same results of nothing appearing on the screen when trying to boot from SD card.


Host environment: Ubuntu Linux 16.04 using VirtualBox.

The SD card is 16GB. 


Any help/advice would be greatly appreciated, and feel free to ask me any questions, I will do my best to supply what you may need from me.


Edit: Some images to provide some more information.


Command ran to setup SD card.


Partitions for SD card after running dd command:


File structure of SD card after running command: