[Bug 1874610] Re: error: failed to register the EFI boot entry: Operation not permitted.

[Harry Rocas]

currently happening to me on Ubuntu 20.10. Never had any issues
installing linux systems until I installed Ubuntu 20.10

"executing grub install /dev/sda failed this is a fatal error"

also posted a similar report https://bugs.launchpad.net/ubuntu/+source
/grub-installer/+bug/1901148

boot-repair did nothing. tried to dual boot with windows 10 in case
their installer would fix it. no luck.

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https://bugs.launchpad.net/bugs/1874610

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

Status in grub-installer package in Ubuntu:
  Confirmed

Bug description:
  Dell Latitude e7270 installation failed when setting the configuration
  the grub

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.15
  ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
  Uname: Linux 5.4.0-26-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.445
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Apr 24 12:34:39 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  ProcEnviron:
   LANGUAGE=en_US.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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