[Bug 1906256] Re: At the end of installation, Installer could not install grub - for dual boot.

[Sebastien Bacher]

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

** Summary changed:

- At the end of installation, Installer could not install grub - for dual boot.
+ grub-install: error: cannot find EFI directory.

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Title:
  grub-install: error: cannot find EFI directory.

Status in grub package in Ubuntu:
  New

Bug description:
  I have windows 10 installed on my computer. 
  I have single disk of 500gb size ( 1 partition - 50mb - system required - NTFS, 2nd partition 165 gb - primary - wherein windows 10 installed).
  I tried to install Ubuntu as secondary OS in dual boot format.
  at the end of installation, it gave error as fatal error.

  Please help us to understand the steps needed while installing ubuntu as dual boot os.
  I would like to know whether a new separate EFI boot partition is needed for ubuntu?

  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: pass
  CasperVersion: 1.455
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Nov 30 18:10:04 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_IN
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_IN
   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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