[Bug 1727646] [NEW] 16.04 installer crashes when using lvm

[Chrescht]

Public bug reported:

Trying to install 16.04 from live usb. Installer fails at grub installation.
Why doesn't the installer switch to the text version and let the user go though the different installation tasks?

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.63.4
ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17
Uname: Linux 4.10.0-28-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CasperVersion: 1.376.2
Date: Thu Oct 26 10:24:05 2017
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
ProcEnviron:
 LANGUAGE=fr_LU.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_LU.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-2.21.63.4 ubuntu xenial

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https://bugs.launchpad.net/bugs/1727646

Title:
  16.04 installer crashes when using lvm

Status in grub-installer package in Ubuntu:
  New

Bug description:
  Trying to install 16.04 from live usb. Installer fails at grub installation.
  Why doesn't the installer switch to the text version and let the user go though the different installation tasks?

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubiquity 2.21.63.4
  ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17
  Uname: Linux 4.10.0-28-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.10
  Architecture: amd64
  CasperVersion: 1.376.2
  Date: Thu Oct 26 10:24:05 2017
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  ProcEnviron:
   LANGUAGE=fr_LU.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_LU.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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