After update to 8 (2004) ... system is unbootable - UEFI Secure boot

[Leon Fauster via CentOS <centos@xxxxxxxxxx>]

Hi all,

I updated a Dell XPS laptop from CentOS 8.1 (1911) to 8.2 (2004).

Installed kernels are
kernel-4.18.0-147.5.1.el8_1.x86_64
kernel-4.18.0-147.8.1.el8_1.x86_64
kernel-4.18.0-193.6.3.el8_2.x86_64

Unfortunately I can not boot into the latest
kernel-4.18.0-193.6.3.el8_2.x86_64.

After grub2 screen I only see following line:

EFI stub: UEFI Secure Boot is enabled

Booting into the older kernel is still possible. The
above line appears and after that the normal kernel
output scrolls over the screen (rhgb quiet disabled).

Is the new kernel correctly signed?

What can I do?

--
Thanks
Leon

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