[Bug 1901438] Re: grub install failed during installation.

[Jean-Baptiste Lallement]

Oct 25 20:00:25 ubuntu grub-installer: Installing for x86_64-efi platform.
Oct 25 20:00:34 ubuntu grub-installer: grub-install: warning: Internal error.
Oct 25 20:00:34 ubuntu grub-installer: grub-install: error: failed to register the EFI boot entry: Operation not permitted.
Oct 25 20:00:34 ubuntu grub-installer: error: Running 'grub-install  --force --target x86_64-efi "/dev/sda"' failed.

** Summary changed:

- grub install failed during installation.
+ grub-install: error: failed to register the EFI boot entry: Operation not permitted.

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https://bugs.launchpad.net/bugs/1901438

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

Status in ubiquity package in Ubuntu:
  New

Bug description:
  grub install failed during installation of Ubuntu-20.10 with error message:
  "Executing 'grub-install/dev/sda' failed. This is a fatal error."

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity 20.10.13
  ProcVersionSignature: Ubuntu 5.8.0-25.26-generic 5.8.14
  Uname: Linux 5.8.0-25-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu50
  Architecture: amd64
  CasperMD5CheckResult: skip
  CasperVersion: 1.455
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Oct 26 01:01:38 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
  ProcEnviron:
   LANGUAGE=en_US.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   LC_NUMERIC=C.UTF-8
  RebootRequiredPkgs:
   linux-image-5.8.0-25-generic
   linux-base
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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