Installation failed to istall grub on manually edited gpt

[Avi Carfmeli]

I was trying to install Ubuntu on WD elements external HDD while in dev/sda win7 installed

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.63
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CasperVersion: 1.376
Date: Thu May 5 18:01:01 2016
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
ProcEnviron:
 LANGUAGE=he_IL.UTF-8
 PATH=(custom, no user)
 LANG=he_IL.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Phillip Susi (psusi)]

Your disk is currently partitioned to boot in bios mode, but you booted the 16.04 installer in EFI mode. A warning message prompted you that this could be a problem and recommended performing a bios mode install instead, but you chose not to. You either need to perform the bios mode install, or partition the disk using GPT and set up an EFI system partition to install in EFI mode. This will be done for you if you choose the "use entire disk" guided install option.

[Avi Carfmeli (avi-ca)]

hello.
Thank you very much for the fast replay.
dev/sda is bios mode while dev/sdb where the installation is is gpt.

Sent from Cellcom email services

-------- הודעה מקורית --------
מאת: Phillip Susi <email address hidden>
תאריך:06/05/2016 05:12 (GMT+02:00)
אל: [e-mail]
נושא: [Bug 1578677] Re: Installation failed to istall grub on manually
  edited gpt

Your disk is currently partitioned to boot in bios mode, but you booted
the 16.04 installer in EFI mode. A warning message prompted you that
this could be a problem and recommended performing a bios mode install
instead, but you chose not to. You either need to perform the bios mode
install, or partition the disk using GPT and set up an EFI system
partition to install in EFI mode. This will be done for you if you
choose the "use entire disk" guided install option.

** Changed in: grub-installer (Ubuntu)
       Status: New => Invalid

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report.
https://bugs.launchpad.net/bugs/1578677

Title:
  Installation failed to istall grub on manually edited gpt

Status in grub-installer package in Ubuntu:
  Invalid

Bug description:
  I was trying to install Ubuntu on WD elements external HDD while in
  dev/sda win7 installed

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubiquity 2.21.63
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CasperVersion: 1.376
  Date: Thu May  5 18:01:01 2016
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
  LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  ProcEnviron:
   LANGUAGE=he_IL.UTF-8
   PATH=(custom, no user)
   LANG=he_IL.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1578677/+subscriptions

[Phillip Susi (psusi)]

Then you will need to create an EFI system partition on that drive.