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Oracle Linux: Secure Boot Enabled System Fails to Boot - Invalid signature detected. Check Secure Boot Policy in Setup (Doc ID 2898152.1)

Last updated on SEPTEMBER 29, 2022

Applies to:

Linux OS - Version Oracle Linux 7.8 and later
Linux x86-64

Symptoms

The GRUB boot loader of a Secure Boot-enabled Oracle Linux (OL) system was recently reinstalled.
Upon reboot, the system fails to boot.
The following error is reported to the system console:

 

                /---------- Secure Boot Violation ----------\                  
                |                                           |                  
                | Invalid signature detected. Check Secure  |                  
                |           Boot Policy in Setup            |                  
                |                                           |                  
                |-------------------------------------------|                  
                |                    Ok                     |                  
                \-------------------------------------------/

 

Changes

 

The GRUB boot loader, grub2, was recently reinstalled.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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