[Bug 1767392] Re: Install of Ubuntu 18.04 alongside Ubuntu 16.04 1 Windows 7 failed at grub stage

[dino99]

*** This bug is a duplicate of bug 1767703 ***
    https://bugs.launchpad.net/bugs/1767703

** This bug has been marked a duplicate of bug 1767703
   Calling 'apt-install grub-efi-amd64-signed' failed

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https://bugs.launchpad.net/bugs/1767392

Title:
  Install of Ubuntu 18.04 alongside Ubuntu 16.04 1 Windows 7 failed at
  grub stage

Status in grub-installer package in Ubuntu:
  New

Bug description:
  Impossible to finish the install of 18.04
  From ISO image on USB stick
  Ubuntu 16.04 was working correctly and grub dual boot was ok before
  SATA HD 2TB with 4 partitions incl data + Ubuntu 16.04
  along SSD with windows

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14
  ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
  Uname: Linux 4.15.0-20-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Apr 27 16:35:56 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  ProcEnviron:
   LANGUAGE=en_US.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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