[Bug 1904933] [NEW] New install fails at 'Grub install'

[Chris Pollock]

Public bug reported:

Trying to install 20.10 from USB created from ISO downloaded, install
fails at 'Grub install to /dev/sda'. This happens with both Kubuntu and
Ubuntu. I chose 'Something else' at the 'where to install' prompt
('Manual' for Kubuntu), as I have a 256GB GPT SSD on a Thinkpad X201
(BIOS boot) which has two c.45GB partitions on which I alternate Ubuntu
releases and a c.150GB as '/home'.

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: skip
CasperVersion: 1.455
CurrentDesktop: ubuntu:GNOME
Date: Thu Nov 19 21:10:58 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)

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug groovy ubiquity-20.10.13 ubuntu

** Attachment added: "syslog"
   https://bugs.launchpad.net/bugs/1904933/+attachment/5436133/+files/syslog

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https://bugs.launchpad.net/bugs/1904933

Title:
  New install fails at 'Grub install'

Status in ubiquity package in Ubuntu:
  New

Bug description:
  Trying to install 20.10 from USB created from ISO downloaded, install
  fails at 'Grub install to /dev/sda'. This happens with both Kubuntu
  and Ubuntu. I chose 'Something else' at the 'where to install' prompt
  ('Manual' for Kubuntu), as I have a 256GB GPT SSD on a Thinkpad X201
  (BIOS boot) which has two c.45GB partitions on which I alternate
  Ubuntu releases and a c.150GB as '/home'.

  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: skip
  CasperVersion: 1.455
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Nov 19 21:10:58 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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