[Bug 1901327] Re: GRUB installation fails at the end on /dev/sda in fresh install (erase old /)

[Benoît Rouits]

*** This bug is a duplicate of bug 1901137 ***
    https://bugs.launchpad.net/bugs/1901137

I finally could re-install it by setting EFI ON in my BIOS, and creating
an 50Mo EFI partition with the ubuntu installer. So, Ubuntu seem not to
work anymore with old PC having not UEFI (or disabling it) ?

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https://bugs.launchpad.net/bugs/1901327

Title:
  GRUB installation fails at the end on /dev/sda in fresh install (erase
  old /)

Status in ubiquity package in Ubuntu:
  New

Bug description:
  I had a Previous upgraded Ubuntu and for some reason, I decided to
  install a fresh one, getting /home (/dev/sdb1) non formatted and /
  (/dev/sda1) reformatted byt the partition manager at install time. At
  the end of installation, grub install fails on /dev/sda (popup) and
  I'm asked to restart anyway. I didn't, to be able to filling this bug.
  Now I will restart and try to figure out how to fix it.

  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: Sat Oct 24 18:01:13 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=fr_FR.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   LC_NUMERIC=C.UTF-8
  RebootRequiredPkgs:
   linux-image-5.8.0-25-generic
   linux-base
   linux-base
   linux-base
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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