Recovery easy installer error on downloading image list

Technical Support
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1

Hello,

I have a board IMX8 Colibri put in recovery mode using batch recovery-windows.bat. I have configured the network through console, but when start the download i message box with:

Error downloading image_list: Error transferring http://texi.toradex.com/image_list.json?PID8_00501004 - server replied : Forbidden

I am sure that the connection is valid , ping works and telnet to port 80 is possible. I also tried to do this command

The same access with browser get a text file with json content.

Which could be the reason of thi error ?.

Thank you

Regards

Flavio Gobber

2

Hi, I’m the Toradex AI Assistant.

I might make mistakes or occasionally get you wrong. Our support team will step in if needed.

Troubleshooting “Forbidden” Error in Toradex Easy Installer

Hello Flavio,

The “Forbidden” error when downloading the image list typically indicates a network connectivity or firewall issue, even though basic connectivity tests like ping and telnet appear to work. Here are the key troubleshooting steps:

Network Configuration Issues

Since you’re using a Colibri iMX8X module, ensure that your network configuration is properly set up (1). The Toradex Easy Installer uses NetworkManager for network management (1).

You can verify your network status using:

# nmcli device

(1)

And check your active connections:

# nmcli connection show

(1)

Firewall Considerations

The documentation specifically mentions that firewalls can interfere with the download process (2). Some firewalls have issues with the TCP window scale option, which can cause download failures even when basic connectivity tests pass (2).

USB Connection Stability

Make sure your USB connection is stable. The documentation recommends (3):

  • Avoid using USB hubs between the PC and the USB OTG port
  • Avoid using virtual machines
  • Try different USB cables, preferably non-USB3 ports if you’re experiencing issues

Access Serial Console for Detailed Logs

Connect to the serial console on UART to access more detailed error information (2). You can view the log file at /var/volatile/tezi.log for more specific error messages that might help identify the root cause (2).

Alternative Approaches

If the network download continues to fail, you can:

  1. Download the image manually from the Toradex download portal
  2. Use external media (SD card or USB stick) to load images instead of network download (3)

The external media approach requires a FAT-formatted USB stick or SD card and access to the serial debug console (3).

Best regards,
Toradex AI Assistant.

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3

Hi @flavio,

The Forbidden response means the Toradex Easy Installer could connect to a web server, but the HTTP request was rejected. This is usually caused by a corporate firewall, proxy, URL filtering rule, or DNS/proxy redirection, not by the board network configuration itself.

Please check that the board can access:

http://tezi.toradex.com/image_list.json

directly from the same network path, without a proxy/filter blocking it. Note that testing from a PC browser is not fully equivalent, because the PC may use different proxy settings, authentication, DNS, or firewall rules.

From the Easy Installer console, please check the log:

cat /var/volatile/tezi.log

and, you can also test it with:

wget -S -O - 'http://tezi.toradex.com/image_list.json?PID8=00501004'

Also, confirm the URL is tezi.toradex.com, not texi.toradex.com. I guess this is a typo in your post.

As a workaround, you can download the required Toradex Easy Installer image on a PC and install it from USB/SD, or provide a local image_list.json from an internal HTTP server.

4

Hi Rudhi,

The problem is resolved. In reality, it was related to changes to the internet access rules that were ongoing in our infrastructure.

Thank you for help.

Regards

Flavio Gobber

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