[Bug 1807781] Re: error: cannot open `/boot/efi/EFI/ubuntu/grubx64.efi': Not a directory.

[David A. Moss]

12/11/18:  More Info; I made sure that the "Secure Boot" option in the
Win Bios was disabled, along with with the "legacy Boot" was already
'greyed out' so I can guess that it is already disabled.  I used the
gparted app in ubuntu, deleted the previous installations of ubuntu,
plus a couple more that were no longer needed, so that I had plenty of
free space.  A new attempt at installation created a partition size of
16G.

The error displayed was 'executing grub-install/dev/sda' before it
crashed.

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https://bugs.launchpad.net/bugs/1807781

Title:
  error: cannot open `/boot/efi/EFI/ubuntu/grubx64.efi': Not a
  directory.

Status in grub-installer package in Ubuntu:
  New

Bug description:
  Installation of ubuntu 18.04.1 along with windoze 10.  Fails 3/4 of
  the way through the installation with cannont installgrub, fatal
  error!

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14.6
  ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
  Uname: Linux 4.15.0-29-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  CasperVersion: 1.394
  Date: Mon Dec 10 17:00:09 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
  LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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