(kernel modified) KLV-AIredale beta14 now successfully booting on my secure boot enabled HP Probook 430 G8 laptop from its internal nvme SSD drive via its Zorin-installed grub2, which like an official Ubuntu grub2 requires signed kernels thereafter. Boots from the Ubuntu/Zorin grub2 installed onto the internal nvme SSD - no usb stick required this time.
i.e. I'm using pristine KLV-Airedale beta14 but swapping in signed Zorin kernel, modules and fireware.
It is probably worth documenting how to do this since many users may first use the likes of Ubuntu or Zorin as their first attempt to try Linux in dual-boot configuration with Windows 10 or 11 and, thereafter, that Ubuntu-style grub2 will not boot KLV-Airedale with its supplied unsigned kernel.
Details now in WeeDog-related howto here: viewtopic.php?p=57731#p57731
NOTE: I did have the hope that:
set check_signatures=no
at grub2 boot, might be usable to stop the signature checking, but thus far I have not managed to get that to have any effect. It is described here: https://www.gnu.org/software/grub/manua ... signatures
Maybe someone else will have more success with that?
Possibly the following contains some other solution, but too much involved and too little time to try: https://askubuntu.com/questions/1313033 ... bootloader
https://ruderich.org/simon/notes/secure ... and-initrd