Problems Reinstalling JetPack on an NVIDIA Thor

Robotics & Edge Computing Jetson Systems Jetson Thor
1

I’m experiencing issues when trying to reinstall JetPack on my NVIDIA Thor.

Initially, I performed a successful installation, but now I want to reinstall JetPack from scratch. However, when attempting to do so, I encounter a problem where the screen gets stuck displaying the following message:

EFI stub: Booting linux kernel…
EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path
EFI stub: Measured initrd data into PCR 9
EFI stub: Using DTB from configuration table
EFI stub: Exiting boot services…

The system freezes on the last line and does not proceed further.

I have followed the configurations described in the guide Re-enable USB stick installation — Jetson AGX Thor Developer Kit - User Guide and have tried different combinations using various USB drives, as well as both HDMI and DisplayPort outputs.

Does anyone know what might be causing this issue? Additionally, I have verified that everything is on version r38.04.

3

Hi,

It is normal log from the UEFI stage.

To debug further, please record the serial console log:

We also recommend installing SDK Manager to perform a full device flash using native Ubuntu 22.04 later. Please refer to the following SDK Manager | NVIDIA Developer.

Thanks

4

Thank you very much for your response. When accessing the console log via the serial connection, I see the following errors at the end:

Start: subiquity/Meta/status_GET:
An error occurred. Press enter to start a shell.

Additionally, I have tried booting from the SDK, but it never detects the NVIDIA Thor, even though I remain connected through the USB port used to get the console logs.

Before attempting the SDK set-up, I follow this procedure:

  • Power off the Thor

  • Turn it back on and immediately press the recovery button (the middle one)

  • While holding the recovery button, press the “restart” button (the one opposite the power button)

  • Then release both buttons

  • I notice that nothing is displayed on the screen

5

There’s your sdkmanager problem. The top/highest usbc slot is only for debug/logs.

For flashing, usbc cable must be in the usbc slot next to the power usbc cable. Then restart while briefly holding middle button. If lsusb still doesn’t add nvidia usb listing, then swap the two usbc cables to the opposite slots.

6

Hi,

Please connect the flashing cable to the J81 port (recovery port), as recommended by whitesscott.

Carrier-Board-Non-Module-Sidedark
Carrier-Board-Non-Module-Sidedark1602×1418 414 KB

Thanks

7

Hello, I have followed all the steps, but I’m still unable to get the host to detect the NVIDIA Thor. I’m attaching some images to show that I’ve tested both USB ports, as well as the output of lsusb on the host machine (both cases generate the same result). Additionally, I’ve included the steps I followed to enter recovery mode. I’ve noticed that when performing this procedure, there isn’t output visible via DisplayPort.

image
image1086×1125 302 KB

8

Hi,

Some questions to confirm:

  • Is your Ubuntu a native or a virtual machine?

Please try swapping the flashing cable with another one to help verify the issue.
Some cables may not support data transfer.

Thanks