[Bug 1775928] [NEW] Ubuntu installer crashed after failing to install GRUB

[Sparkpin]

Public bug reported:

I attempted to install Ubuntu MATE over a previously ruined Xubuntu
installation (upgrade to 18.04 broke, updater was unable to install
'menu') on an ext4 partition. I chose the option to wipe the old install
of Xubuntu and install Ubuntu MATE in its place. If it makes any
difference, I have Windows 10 installed onto another NTFS partition, but
the installer claimed it would not be affected.

Release: 18.04
Package version: apt-cache was unable to locate grub-installer. Returned "(none)" for apt-cache policy grub.
Expected behaviour: The installer would wipe the ext4 partition and install Ubuntu MATE onto the partition.
What happened: The installer reported that it was unable to install grub-efi-amd64-signed into /target/ and then crashed.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14
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: Fri Jun  8 15:46:28 2018
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-mate.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.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 bionic ubiquity-18.04.14 ubuntu-mate

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https://bugs.launchpad.net/bugs/1775928

Title:
  Ubuntu installer crashed after failing to install GRUB

Status in grub-installer package in Ubuntu:
  New

Bug description:
  I attempted to install Ubuntu MATE over a previously ruined Xubuntu
  installation (upgrade to 18.04 broke, updater was unable to install
  'menu') on an ext4 partition. I chose the option to wipe the old
  install of Xubuntu and install Ubuntu MATE in its place. If it makes
  any difference, I have Windows 10 installed onto another NTFS
  partition, but the installer claimed it would not be affected.

  Release: 18.04
  Package version: apt-cache was unable to locate grub-installer. Returned "(none)" for apt-cache policy grub.
  Expected behaviour: The installer would wipe the ext4 partition and install Ubuntu MATE onto the partition.
  What happened: The installer reported that it was unable to install grub-efi-amd64-signed into /target/ and then crashed.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14
  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: Fri Jun  8 15:46:28 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-mate.seed boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  ProcEnviron:
   LANGUAGE=en_US.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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