[Bug 1935718] Re: error: failed to register the EFI boot entry: Operation not permitted.

[Steve Langasek]

> Jul  9 22:54:51 ubuntu grub-installer: Installing for x86_64-efi platform.
> Jul  9 22:54:52 ubuntu grub-installer: grub-install: warning: Internal error.
> Jul  9 22:54:52 ubuntu grub-installer: grub-install: error: failed to register the EFI boot entry: Operation not permitted.

This shows that your system is running EFI, but that grub has been
blocked from updating the firmware variables to register itself as a
boot option.

Please check if there is a security setting in your firmware that blocks
changing the boot order and disable it.

Without being able to update the boot order, Ubuntu is likely not going
to be able to be booted on your dual-boot system.  So it's not a bug
that grub flags this problem before finishing the install, but a bug
with your system that it doesn't support updating the boot order.

** Package changed: grub (Ubuntu) => grub2 (Ubuntu)

** Changed in: grub2 (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1935718

Title:
  error: failed to register the EFI boot entry: Operation not permitted.

Status in grub2 package in Ubuntu:
  Incomplete

Bug description:
  install on a drive with existing windows 10 installation.

  ProblemType: Bug
  DistroRelease: Ubuntu 21.10
  Package: ubiquity 21.10.3
  ProcVersionSignature: Ubuntu 5.11.0-20.21+21.10.1-generic 5.11.21
  Uname: Linux 5.11.0-20-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu67
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.463
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Jul  9 20:09:14 2021
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 21.10 "Impish Indri" - Alpha amd64 (20210709)
  ProcEnviron:
   LANGUAGE=en_CA.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_CA.UTF-8
   LC_NUMERIC=C.UTF-8
  RebootRequiredPkgs:
   linux-image-5.11.0-20-generic
   linux-base
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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