It appears we are getting an opcode error when attempting to boot
Centos 9-stream utilizing the EFI artifacts from Ubuntu.
Technically this should work, however further aftifacts in the boot
chain may be signed with other key credentials that Ubuntu's
grub does not know about, because the chain of trust is
MSFT -> Vendor shim (slow change rate) -> Vendor GRUB -> Kernel
Where vendor differences should never work, is if Secure Boot
is enforcing.
Exception on launch:
X64 Exception Type - 06(#UD - Invalid Opcode) CPU Apic ID - 00000000 !!!!
A similar Debian bug is open for a very similar issue:
https://groups.google.com/g/linux.debian.bugs.dist/c/BOiLLeROrmo
However, no additional comments or information have been in follow
up to that reported issue. So in the mean time, we're going to try
and do what those smarter than I recommend, use the vendor's
binaries for their distribution.
There is one further, potentially far more depressing possibility,
that centos9's kernel doesn't support the type of hardware
we're getting. This is suggested by the precise opcode error, UD,
https://xem.github.io/minix86/manual/intel-x86-and-64-manual-vol3/o_fe12b1e2a880e0ce-212.html
But again, easiest possibility first.
Change-Id: Id9bd30bc3c2f1076555317e4a3f277725fa7c1f4
1d07be8237