[Bug 1900703] [NEW] installer crash installing grub

[KC1DI]

Public bug reported:

Installer crashed while trying to install grub.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: ubiquity 20.10.13
ProcVersionSignature: Ubuntu 5.8.0-23.24-generic 5.8.14
Uname: Linux 5.8.0-23-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
CasperMD5CheckResult: skip
CasperVersion: 1.455
Date: Tue Oct 20 09:07:45 2020
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 20.10 "Groovy Gorilla" - Beta amd64 (20201019.1)
RebootRequiredPkgs:
 linux-image-5.8.0-25-generic
 linux-base
 linux-image-5.8.0-23-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-20.10.12 ubuntu

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https://bugs.launchpad.net/bugs/1900703

Title:
  installer crash installing grub

Status in ubiquity package in Ubuntu:
  New

Bug description:
  Installer crashed while trying to install grub.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity 20.10.13
  ProcVersionSignature: Ubuntu 5.8.0-23.24-generic 5.8.14
  Uname: Linux 5.8.0-23-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu50
  Architecture: amd64
  CasperMD5CheckResult: skip
  CasperVersion: 1.455
  Date: Tue Oct 20 09:07:45 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 20.10 "Groovy Gorilla" - Beta amd64 (20201019.1)
  RebootRequiredPkgs:
   linux-image-5.8.0-25-generic
   linux-base
   linux-image-5.8.0-23-generic
   linux-base
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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