When trying to install CentOS 8 in my Desktop with a asus motherboard that supports UEFI and secure boot I got the error /images/pxeboot/vmlinuz invalid signature, googling I found that it was about secure boot and that I had to disable secure boot, I did that. But still got the error.

Then I kept looking and read that you can prevent grub to check the signatures if disabling a environment variable like this: set check_signatures=no and still got the error.

I'm sure secure boot is disable:enter image description here

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