[Bug 1767683] [NEW] The installer fails to create grub so the system will not boot

[Miguel Eduardo del Canto Pérez]

Public bug reported:

I don't know, just was installing the new version, replacing Ubuntu
17.10 and this error occurs, saying that the installed software will not
be able to boot!

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.12
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CasperVersion: 1.394
Date: Sat Apr 28 18:53:12 2018
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180425.1)
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug bionic ubiquity-18.04.12 ubuntu

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https://bugs.launchpad.net/bugs/1767683

Title:
  The installer fails to create grub so the system will not boot

Status in grub-installer package in Ubuntu:
  New

Bug description:
  I don't know, just was installing the new version, replacing Ubuntu
  17.10 and this error occurs, saying that the installed software will
  not be able to boot!

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.12
  ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
  Uname: Linux 4.15.0-20-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  CasperVersion: 1.394
  Date: Sat Apr 28 18:53:12 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
  LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180425.1)
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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