[Bug 1921545] Re: While installing Lubuntu 18.04.5-desktop-amd64 , the grub failed to install therefore causing installation to crash.

[Steve Beattie]

Thanks for taking the time to report this bug and helping to make Ubuntu
better. We appreciate the difficulties you are facing, but this appears
to be a "regular" (non-security) bug.  I have unmarked it as a security
issue since this bug does not show evidence of allowing attackers to
cross privilege boundaries nor directly cause loss of data/privacy.
Please feel free to report any other bugs you may find.

** Information type changed from Private Security to Public

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https://bugs.launchpad.net/bugs/1921545

Title:
  While installing Lubuntu 18.04.5-desktop-amd64 , the grub failed to
  install therefore causing installation to crash.

Status in grub-installer package in Ubuntu:
  New

Bug description:
  While installing Lubuntu 18.04.5-desktop-amd64 , the grub failed to install therefore causing installation to crash.
  I installed lubuntu on a usb, then plugged it into my pcc with another usb, and tried to install lubuntu on that other usb. Every step of the installation process seemed fine but right towards the end, an error message of the installation popped-up on my screen and it also said something about grub failing to install. Please let me know how I can avoid this issue or please provide a possible fix. 
  Thank you.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14.15
  ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
  Uname: Linux 5.4.0-42-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.16
  Architecture: amd64
  CasperVersion: 1.394.3
  Date: Fri Mar 26 14:29:03 2021
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/lubuntu.seed boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Lubuntu 18.04.5 LTS "Bionic Beaver" - Release amd64 (20200806.1)
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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