I am not able to boot imx6q saber sd board

[purusothamangan]

Hi,

I am new to Linux development environment.

The problem that I am having it, I able to boot the iMX6Q Saber SD board with its demo card,

But I try creating my own card, I am not able to see anything on the either on the display nor in the Hyper Terminal.

I am following exactly the step that are provided in the User Guide of the Board.

Environment: Linux as a Virtual Machine, the Uboot, Kernel and rootfs are pre-built images from freescale.

Can anyone please help me?

Thanks & Regards,

Purusothaman G.

[LeonardoSandova]

Hi,

How are you flashing the SD card? Does U-boot start executing? if yes, please do a 'print' inside and post the values.

Leo

[purusothamangan]

Hello Leo,

I am using the following commands as per the user guide

$ sudo dd if=u-boot-mx6q-sabresd.bin of=/dev/sdb bs=512 seek=2 skip=2 conv=fsync

$ sudo dd if=uImage of=/dev/sdb bs=512 seek=2048 conv=fsync

I am using 8GB SanDisk SDHC card.

I am not seeing anything on the hyper terminal. It seems that it is not even starting Uboot.

Thanks & Regards,

Purusothaman G.

[LeonardoSandova]

Hi, not sure what is happening, you flash commands are correct. Make sure you choose the correct COM port on Hyperterminal. Also, when you connect your SD Card, execute 'cat /proc/partitions' on Linux, so you are sure the SD card has been recognized by the system (for some reason, the 'dd' command does not throw a error even if the 'of' value is wrong).

You can also use picocom/minicom on your linux virtual machine (e.g.picocom -b 115200 /dev/ttyUSB0) , this can be another test to try.

Leo

[williamz]

Hi Leo,

I am also using pre-built demo images downloaded from freescale website. The kernel did start executing. But it asked to enter login and password. Do you know what they are?  Is there any other prebuilt kernel available for download with no login required? 

Regards,

William

[AlbertT]

Hello William,

The login is root.

Best regards,

[williamz]

Got it. It worked. Thanks.

William

[purusothamangan · Accepted solution]

Hello Leo,

I got this now resolved. Sorry it was my mistake, I was using the Uboot of imx6q on imx6dl SDP Board.

Thanks for you support and suggestions.

[williamz]

Hi Purusothaman

How was your kernel running?  Were you asked to enter freescale login and password?

William

[purusothamangan]

Hello William,

I used the pre-built image that came along with L3.0.35_4.0.0_130424_images_MX6.tar

Yes, it asked for a login.. I just entered "root" and it worked fine for me !!!