Hi, If I enable Secure Boot in my UEFI I get this error (just after selecting Centos from the grub menu) grub-core/kern/efi/sb.c:151: bad shim signature grub-core/loader/i386/efi/linux.c:208: you need to load the kernel first Can someone explain to me why I get this, please? And what can I do to get Centos to boot with Secure Boot? My system: NAME="CentOS Linux" VERSION="8" CentOS Linux release 8.4.2105 Thank you.