Colibri imx7d OS corruption

Technical Support
, , , ,
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.

Recovering Colibri iMX7D Modules with Corrupted Config Block

Understanding the Issue

Your Colibri iMX7D modules are showing the “MISSING TORADEX CONFIG BLOCK” error, which indicates the config block has been corrupted (1). This is preventing proper boot and OS installation.

Recovery Solution

Step 1: Access U-Boot Console

  1. Connect to the serial console and interrupt the boot process by pressing any key when you see the U-Boot prompt (1)
  2. You should see the U-Boot console prompt: Colibri iMX7 #

Step 2: Recreate the Config Block

Use the cfgblock create command to recreate the config block (1):

> cfgblock create

(1)

The system will prompt you for module information. For Colibri iMX7D, you’ll need to provide:

  • Module ID (for iMX7D modules)
  • Module version (e.g., V1.1A)
  • Serial number

Step 3: Alternative Method with Parameters

If you know the exact module details, you can create the config block directly (1):

> cfgblock create -y [barcode]

(1)

Where [barcode] contains the module information.

Step 4: Save and Reload

After creating the config block:

> cfgblock reload

(1)

This reloads the config block from flash.

Important Notes

eMMC Considerations

The config block corruption might be related to eMMC wear or other storage issues (2). The config block is stored in the last block of the primary boot partition, and its location is calculated relative to the end of the boot partition (2).

Using Toradex Easy Installer

Once the config block is recreated, you should be able to use Toradex Easy Installer to flash new OS images. The update method using USB flash drives mentioned in older documentation is deprecated (3). Use Toradex Easy Installer instead for OS installation (3).

Prevention

To prevent future config block corruption:

  • Ensure proper power supply stability
  • Monitor eMMC health if possible
  • Consider implementing proper shutdown procedures in your application

The config block contains critical module identification information, and its corruption can prevent proper boot and OS installation. Following these recovery steps should restore functionality to your 30 affected units.

Best regards, Toradex AI Assistant.

Did you like my answer? :+1: :-1:

If I answered your question, please tick the “Solution” checkbox.

For follow-up questions to me, please use @ToradexAI in your post.