[Bug 1460276] Re: package grub-efi-amd64-signed 1.34.3+2.02~beta2-9ubuntu1.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Till Paulus]

i am affected too!

ubuntu 17.10 installer says: couldn't install grub2 to target.
(... to /target/  which is the 2nd partition on my western digital ssd 120 GiB and shall be mounted as "/", formatted as ext4 jfs)
(first partition is linux-swap)
(last partition is extended, ext4, "/home")

on the first run, i may have forgotten to tell the installer, where to
put the EFI install.

now it's the second run, where no opensuse or windows installation
reside anywhere anymore.

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Title:
  package grub-efi-amd64-signed 1.34.3+2.02~beta2-9ubuntu1.2 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in grub2-signed package in Ubuntu:
  Confirmed

Bug description:
  1) Description:	Ubuntu 14.04.2 LTS 64bit
  Release:	14.04

  2) grub-efi-amd64:
    Installato: 2.02~beta2-9ubuntu1.2
    Candidato:  2.02~beta2-9ubuntu1.2

  3) Package won't install

  4) Returning error

  ProblemType: Package
  DistroRelease: Ubuntu 14.04
  Package: grub-efi-amd64-signed 1.34.3+2.02~beta2-9ubuntu1.2
  ProcVersionSignature: Ubuntu 3.16.0-33.44~14.04.1-generic 3.16.7-ckt7
  Uname: Linux 3.16.0-33-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: amd64
  Date: Sat May 30 11:24:22 2015
  DuplicateSignature: package:grub-efi-amd64-signed:1.34.3+2.02~beta2-9ubuntu1.2:subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.34.3+2.02~beta2-9ubuntu1.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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