[Bug 1785419] Re: I chose "do something else" and set up an ext4 partition, and a 8gb swap partition, but it throws an error installing grub :-(

[Phillip Susi]

*** This bug is a duplicate of bug 1766945 ***
    https://bugs.launchpad.net/bugs/1766945

Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 1766945, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** This bug has been marked a duplicate of bug 1766945
   (EFI on top of legacy install) choosing "replace" or "resize" options in partitioning may lead to an install failure

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https://bugs.launchpad.net/bugs/1785419

Title:
  I chose "do something else" and set up an ext4 partition, and a 8gb
  swap partition, but it throws an error installing grub :-(

Status in grub-installer package in Ubuntu:
  New

Bug description:
  while installing ubuntu, for my partitions, I selected "Something
  else", and I set up a 8gb swap partition, and the remainder as a ext4
  partition.  I'm doing all this on my sdb hard drive, as well as
  setting up grub on sdb.  however, I get this error when the installer
  is installing grub. :-(

  The 'grub-efi-amd64-signed' package failed to install into /
  target/. Without the GRUB boot loader, the installed system will 
  not boot.

  Thank you for your help! :)

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14.6
  ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
  Uname: Linux 4.15.0-29-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  CasperVersion: 1.394
  Date: Sat Aug  4 12:51:28 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
  LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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