GRUB2-INSTALL dummy fails

[redengin]

Attempting to install ubuntu 12.10 on a g7-2320dx (HP Pavilion) with a Windows 8 OEM installed. Booted the Ubuntu USB in "Secure Boot" mode. Attempting to rewrite MBR. Have heard rumors of a "restricted" MBR being used by Windows 8.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: ubiquity 2.12.16
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu3
Architecture: amd64
CasperVersion: 1.328
Date: Sun Jan 27 11:42:19 2013
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi.signed file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --
LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)