[Bug 1904226] Re: [Regression] grub-install: error: failed to register the EFI boot entry: Operation not permitted.

[Steven Clarkson]

Attached lshw for the system I'm seeing this on. The root and boot
partitions are on an NVMe drive on a ASRock TRX40 Creator motherboard.

** Attachment added: "lshw.txt"
   https://bugs.launchpad.net/ubuntu/+source/efivar/+bug/1904226/+attachment/5434191/+files/lshw.txt

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https://bugs.launchpad.net/bugs/1904226

Title:
  [Regression] grub-install: error: failed to register the EFI boot
  entry: Operation not permitted.

Status in efivar package in Ubuntu:
  New

Bug description:
  When updating libefiboot1 from 37-2ubuntu2 to 37-2ubuntu2.1 on focal,
  the following error now occurs.

  $ grub-install /dev/nvme0n1 --target=x86_64-efi --efi-directory=/boot/efi
  Installing for x86_64-efi platform.
  grub-install: warning: Internal error.
  grub-install: error: failed to register the EFI boot entry: Operation not permitted.

  I was able to trace the bug to a parsing failure in acpi_root. The
  same fix as in LP: 1892792 solves the problem, and I've recompiled to
  verify that. The parser should simply not apply, but the uninitialized
  variable is reliably uninitialized to a value that suggests a match.

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