Grub will not install during installation of Ubuntu

Bug #1781302 reported by Richard Cederberg on 2018-07-12
This bug affects 1 person
Affects Status Importance Assigned to Milestone
grub-installer (Ubuntu)

Bug Description

Grub fail to install during standard install of Ubuntu. I had installed Linux Mint 19 on my old MacBook Pro, but changed my mind and decided to install Ubuntu 18.04. During install I got errors saying it could not mount sda1 and finally at the end of install it Grub would not install. I tried again this time creating my own partitions sda1/ sda1/boot and sda1/home. This time it did not complain about mounting sda1 ... but still failed to install Grub.

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
NonfreeKernelModules: wl
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CasperVersion: 1.394
CurrentDesktop: ubuntu:GNOME
Date: Thu Jul 12 09:46:22 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)
 PATH=(custom, no user)
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

Richard Cederberg (rcederberg) wrote :
Phillip Susi (psusi) wrote :

Your disk is currently partitioned to boot in bios mode, but you booted the installer in EFI mode. You either need to boot the installer in bios mode, 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
Richard Cederberg (rcederberg) wrote :

Thank you Phillip! I eventually worked this out and created an EFI system partition ... and this worked like a dream!

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