The Secure Boot Error Message Prompts During the Restore Process

Summary: An Ubuntu 20.04 device with Dell Client Agent - Enabler (DCA Enabler) configured encounters a Secure Boot error message that is displayed while the operating system restore is in process. ...

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Symptoms

Affected Products:

  • Most products shipping with Ubuntu 20.04 with DCA Enabler configuration
Note: Observed mostly on products that have an NVIDIA driver

User performs recovery option on the device and the device starts the restore process, then the below message is displayed. The device is stops responding and cannot progress.

Secure Boot error message
Figure 1: (English Only) Error message received during Ubuntu recovery process

Cause

This issue is happening because the Dell Recovery Tool detects the device to be a Dell Hybrid Client computer while recovery and during Ubuntu Base operating system install it skips some scripts (relevant to Secure boot pre-apply configuration to backup existing signature keys). Then, it tries to reenable the Secure boot which results in the above dialog being displayed for NVIDIA driver component devices. The workflow should be to install standard Ubuntu for a DCA Enabler.

Resolution

To resolve this:

  1. Once the user is on the above screen, shut the device down, and then power the device back on.
  2. While restarting, disable secure boot manually from the BIOS, save, and exit.
Note:
  • This process varies depending on the device.
  • The device reboots.
  1. Once restarted, the restore process should continue.

Affected Products

Dell Hybrid Client
Article Properties
Article Number: 000195379
Article Type: Solution
Last Modified: 30 Sep 2024
Version:  4
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