Problem
The following error appears on bootup:
Secure Boot Violation Error
Invalid signature detected. Check Secure Boot Policy in Setup
When booting an operating system, modern UEFI-based systems require a digital signature to ensure the operating system being booted is trusted.
Solution 1
Example is from Alienware.
- Access the BIOS setup of the system (Press F2, F10, DEL, etc depending on vendor).
- Access the Security menu.
- Toggle the Secure Boot setting to "Disabled".
4. Attempt booting again.
Solution 2
Example is from Alienware.
- Access the BIOS setup of the system (Press F2, F10, DEL, etc depending on vendor).
- Access the Security menu.
- Reset or Clear the cryptographic keys.
4. Attempt booting again.
Additional Information
The system image you have created may be incompatible with your BIOS configuration - that is to say, if you create a system image under legacy boot mode, it will work for both legacy and UEFI modes, but if you create a system image under UEFI mode, it will ONLY work for UEFI-mode boot.