Unable to sign binary files using flash.sh script

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

Hello,

I am trying to update u-boot binary on Jetson NANO flashed with JetPack 4.3. I followed the steps on NVIDIA’s documentation in order to customize U-Boot. Copied the u-boot.bin to host system under {LINUX_FOR_TEGRA}/bootloader/t210ref/p3450-porg/ dir.

However, when I tried to create signed/encrypted boot.img.encrypt file for partition “LNX” in order to “dd” it on the target NANO, I got below error message:

*** Signing boot.img ***
./tegraflash.py --chip 0x21 --cmd "sign ./signed/boot.img.encrypt"  
Welcome to Tegra Flash
version 1.0.0
Type ? or help for help and q or quit to exit
Use ! to execute system commands
 
[   0.0031 ] Generating signature
Error: Not supported
Failed to flash/read t210ref.

Full log has been attached.

Also, it’s just not about u-boot partition flashing, this error occurs while trying to create encrypted binaries for other partitions. This issue is only for Jetson NANO, other Jetson products work as expected.

I can’t directly connect the target hardware to the host system, hence need to “dd” the encrypted binary. May I know what I could be doing wrong here?

2

Looks like with new developer forum, I can no longer upload a .txt or .log file. Dunno how to create a .loggz file.

3

Hi AnishAney,

You can find the upload button at the top of editor screen to upload a .txt or .log file, or zip them to upload should be OK.

5

t210 chip seems no need to sign the binary if you are not using secure boot.

6

Hello kaycc,

It looks like it doesn’t allow anything other than a particular set of extensions. Please find attached screenshot.

Forum_Upload_button
Forum_Upload_button1920×1149 179 KB

So, my logs with .txt or .log are discarded with an error

7

Thank you, WayneWWW for the response.

Let me try to directly “dd” the new u-boot.bin to the “LNX” partition.