[Bug 1700601] [NEW] grub2 does not install from usb bootdrive

[Photon303]

Public bug reported:

at the end of the install, the grub2 package is not able to install
install is done in uefi mode

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: ubiquity 17.04.9
ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
Uname: Linux 4.10.0-19-generic x86_64
ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
CasperVersion: 1.380
Date: Mon Jun 26 11:51:34 2017
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/xubuntu.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
ProcEnviron:
 LANGUAGE=en_CA.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_CA.UTF-8
 LC_NUMERIC=C.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug ubiquity-17.04.9 xubuntu zesty

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https://bugs.launchpad.net/bugs/1700601

Title:
  grub2 does not install from usb bootdrive

Status in grub-installer package in Ubuntu:
  New

Bug description:
  at the end of the install, the grub2 package is not able to install
  install is done in uefi mode

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: ubiquity 17.04.9
  ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
  Uname: Linux 4.10.0-19-generic x86_64
  ApportVersion: 2.20.4-0ubuntu4
  Architecture: amd64
  CasperVersion: 1.380
  Date: Mon Jun 26 11:51:34 2017
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/xubuntu.seed boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  ProcEnviron:
   LANGUAGE=en_CA.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_CA.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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