"symbol grub_efi_secure_boot not found" on hardware

keyboardgoblin · **Joined:** Mon Aug 13, 2018 7:55 am **Posts:** 1

I am using grub-mkrescue to create an iso image out of my kernel.
This works fine in an emulator but once I use rufus to burn the iso image to a usb it refuses to boot.
The grub menu comes up fine but gives me "error: symbol 'grub_efi_secure_boot' not found'.
I tried messing around in the bios options for my laptop but I cant find anything that relates to secure boot.

Any help would be appreciated.

ZachY · **Joined:** Mon Apr 08, 2019 11:18 am **Posts:** 1

I had the exact same error just last night, what a coincidence

What I did was burn the image using Rufus's DD image mode, that fixed the issue for me.

valentinbreiz · **Joined:** Sun Apr 30, 2017 7:19 am **Posts:** 3

I have the exact same problem. What is Rufus's DD image mode?
PS: okay I found lol many thanks

bzt · **Joined:** Thu Oct 13, 2016 4:55 pm **Posts:** 1584

"Computers are to solve problems that wouldn't exists without computers"

Wise words... This is going to happen to you over and over again if you're not using a POSIX system for development! A Linux or BSD would have had "dd" and "cdw" at your disposal :-)

Cheers,
bzt

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"symbol grub_efi_secure_boot not found" on hardware

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