crashed during install of 14.04

[jon_herr]

Installed most of the way but crashed on grub-install on /dev/sda

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubiquity 2.17.9 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 3.13.0-18.38-generic 3.13.6
Uname: Linux 3.13.0-18-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CasperVersion: 1.339
Date: Mon Mar 31 08:23:04 2014
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --
LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140322)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Phillip Susi (psusi)]

Your disks have no EFI system partition on them. This is required to boot in efi mode. If you do not intend to boot in efi mode, then you have to boot the installer in bios mode.