Installation failed for intel x79 chipset HW RAID0 disk

[Marko Vertainen]

Motherboard: Asus P9X79 deluxe, Bios version 2002 (windows 8 ready according to changelog)
SATA Chipset: Intel x79 express
Storage: 2x Samsung 256GB 830 Series SSD SATA III (connected to SATA 6Gb/s connectors with RAID0 setup)

RAID0 volume has Windows 7 Pro installed. There was about 30GB free space reserved for Ubuntu.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.10.16 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
CasperVersion: 1.315
Date: Fri Aug 10 22:40:56 2012
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash --
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcEnviron:
 LANGUAGE=fi_FI.UTF-8
 TERM=linux
 PATH=(custom, no user)
 LANG=fi_FI.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)