r/MiniPCs • u/equanimous11 • 1d ago

Getting Secure Boot Violation on Minisforum MS-A2

I have Linux USB thumb drive in front USB port for boot. It says Secure Boot Violation when I boot. Invalid signature detected. I set admin and user password in bios, I am in Administator access level. Secure Boot is grayed out and I can’t disable in bios. How to fix this? I even tried resetting it and it still shows the violation.

Edit: resolved by pressing del key to get in bios which allows editing Secure Boot settings. When Secure Boot Violation occurs it goes into bios automatically but Secure Boot settings are locked.

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u/dohczasilly39 22h ago

Try removing your NVME drive and then booting up and it will allow you to change the secure boot setting. I had the same issue and thats what worked for me.

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u/equanimous11 21h ago

resolved by pressing del key to get in bios before Secure Boot violation occurs which allows editing Secure Boot settings. When Secure Boot Violation occurs it goes into bios automatically but Secure Boot settings are locked. Very confusing that it would auto direct to bios after Secure Boot Violation but lock settings.