[Bug 1783631] Re: Dual boot install - Grub install failed.

[Phillip Susi]

Yep; your disk is set up for EFI mode so you need to install Ubuntu in
EFI mode too.


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

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https://bugs.launchpad.net/bugs/1783631

Title:
  Dual boot install - Grub install failed.

Status in grub-installer package in Ubuntu:
  Invalid

Bug description:
  Trying a dual boot install.  
  /dev/sda is a Windows SSD and boots normally.
  /dev/sdb is supposed to be the Ubuntu SSD, but grub will not install from the graphical install program.  
  Command line install "sudo grub-install /dev/sdb" returns an error "failed to get canonical path of `cow'."

  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
  Date: Wed Jul 25 14:50:19 2018
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
  LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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