I just tried retesting with grub-efi-amd64-signed_1.169+2.04-1ubuntu45_amd64.deb and shim-signed_1.47+15.4-0ubuntu2_amd64.deb from Impish. I made sure those versions of GRUB and the shim were served by MAAS and that they were both used in the local deployed environment. During testing I added 'set debug="all"' to grub.cfg coming from MAAS as well as the local grub.cfg. I also made sure 'earlyprintk=efi' was passed to the kernel in the local grub.cfg.
I don't think the kernel is ever being loaded. The last message I get is "EFI stub: UEFI Secure Boot is enabled." The system then hangs and never proceeds.
I just tried retesting with grub-efi- amd64-signed_ 1.169+2. 04-1ubuntu45_ amd64.deb and shim-signed_ 1.47+15. 4-0ubuntu2_ amd64.deb from Impish. I made sure those versions of GRUB and the shim were served by MAAS and that they were both used in the local deployed environment. During testing I added 'set debug="all"' to grub.cfg coming from MAAS as well as the local grub.cfg. I also made sure 'earlyprintk=efi' was passed to the kernel in the local grub.cfg.
I don't think the kernel is ever being loaded. The last message I get is "EFI stub: UEFI Secure Boot is enabled." The system then hangs and never proceeds.