Grub not installing on macbook2,1 (mid 2007)

[gzutolx]

After a first bad attempt, I formated and installed system (Ubuntu-Studio 14.04 low latency kernel) again along OSX.
Grub failed to install on the disk, or any of its partition.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubiquity 2.18.8.6
ProcVersionSignature: Ubuntu 3.16.0-30.40~14.04.1-lowlatency 3.16.7-ckt3
Uname: Linux 3.16.0-30-lowlatency i686
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: i386
CasperVersion: 1.340
Date: Thu Jul 16 23:28:40 2015
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper iso-scan/filename=/efi/boot/boot.iso noefi quiet splash --
LiveMediaBuild: Ubuntu-Studio 14.04.2 LTS "Trusty Tahr" - Release i386 (20150218.1)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.