[Bug 1908611] Re: Error "Executing 'grub-install /dev/sda' failed. This is a fatal error" generated during installation of Ubuntu 20.10

[Steven Pearson]

** Attachment added: "syslog"
   https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1908611/+attachment/5444699/+files/syslog

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Title:
  Error "Executing 'grub-install /dev/sda' failed. This is a fatal
  error" generated during installation of Ubuntu 20.10

Status in ubiquity package in Ubuntu:
  New

Bug description:
  The following error was generated when attempting to install Ubuntu v
  20.10 on a PC running Windows 7 when selecting to install Ubuntu along
  side Windows 7.

  "Executing 'grub-install /dev/sda' failed. This is a fatal error"

  The message "Installation is complete. You need to restart the
  computer in order to use the new installation" follows the above
  error.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity 20.10.13
  ProcVersionSignature: Ubuntu 5.8.0-25.26-generic 5.8.14
  Uname: Linux 5.8.0-25-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu50
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.455
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Dec 17 23:30:21 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
  ProcEnviron:
   LANGUAGE=en_GB.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   LC_NUMERIC=C.UTF-8
  RebootRequiredPkgs:
   linux-image-5.8.0-25-generic
   linux-base
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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