Comment # 1 on bug 1191480 from Frank Kr���ger

(In reply to Yan Huang from comment #0)
> On openSUSE Tumbleweed 20211005 (with shim 15.4-4.2 and Secure Boot
> enabled), booting the newest Kernel:stable kernel 5.14.10-2.1.g2878fd1 leads
> to:
> 
> > Loading Linux kernel-default-5.14.10-2.g2878fd1-default ...
> > error: ../../grub-core/kern/efi/sb.c:150:bad shim signature.
> > Loading initial ramdisk ...
> > error: ../../grub-core/loader/i386/efi/linux.c.98:you need to load the kernel first.
> > 
> > Press any key to continue..._
> 
> The previous Kernel:stable kernel 5.14.9-2.1.gd0ace7f did not have this
> issue.
> 
> The issue seems to be similar to the previous boo#1188142 (Kernel 5.13.1
> does not boot due to bad shim signature).

Confirmed with TW20201005, shim-15.4-4.2.x86_64 and
kernel-default-5.14.10-2.1.g2878fd1.x86_64 from kernel:stable.