[Bug 1798322] [NEW] Failed to install grub on a fresh install with custom partition selection

[Heiko Voigt]

Public bug reported:

When starting a fresh install for Ubuntu 18.04.1 I encountered this bug.

The system has an SSD with Windows 10 on other partitions and the Ubuntu
system should go on there while the /home partition has its own disk. I
selected the SSD as the target to install grub.

I started the install from an USB stick. While the installer was copying
files it told me at one point that grub can not be installed on
"/target" and the installation stopped.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14.6 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CasperVersion: 1.394
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 17 11:49:13 2018
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
ProcEnviron:
 LANGUAGE=de_DE.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.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-18.04.14.6 ubuntu

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https://bugs.launchpad.net/bugs/1798322

Title:
  Failed to install grub on a fresh install with custom partition
  selection

Status in grub-installer package in Ubuntu:
  New

Bug description:
  When starting a fresh install for Ubuntu 18.04.1 I encountered this
  bug.

  The system has an SSD with Windows 10 on other partitions and the
  Ubuntu system should go on there while the /home partition has its own
  disk. I selected the SSD as the target to install grub.

  I started the install from an USB stick. While the installer was
  copying files it told me at one point that grub can not be installed
  on "/target" and the installation stopped.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14.6 [modified: lib/partman/automatically_partition/question]
  ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
  Uname: Linux 4.15.0-29-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Oct 17 11:49:13 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  ProcEnviron:
   LANGUAGE=de_DE.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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