[Bug 1678457] [NEW] Unable to install alongside windows 10, GRUB not properly installed error at the end of the installation process

[Ganesh]

Public bug reported:

unable to install alongside windows 10.
Machine : Lenovo Thinkpad t420
Previous OS : Windows 10
GRUB not properly installed error at the end of the installation process

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: ubiquity 16.10.14
ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0
Uname: Linux 4.8.0-22-generic x86_64
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
CasperVersion: 1.379
Date: Sat Apr  1 15:57:56 2017
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: grub-installer (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug ubiquity-16.10.14 ubuntu yakkety

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https://bugs.launchpad.net/bugs/1678457

Title:
  Unable to install alongside windows 10, GRUB not properly installed
  error at the end of the installation process

Status in grub-installer package in Ubuntu:
  New

Bug description:
  unable to install alongside windows 10.
  Machine : Lenovo Thinkpad t420
  Previous OS : Windows 10
  GRUB not properly installed error at the end of the installation process

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: ubiquity 16.10.14
  ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0
  Uname: Linux 4.8.0-22-generic x86_64
  ApportVersion: 2.20.3-0ubuntu8
  Architecture: amd64
  CasperVersion: 1.379
  Date: Sat Apr  1 15:57:56 2017
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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