OS installation failed to install bootloader on tandem installation option.

[Colby Hill]

System Specs
CPU: i5 2400
RAM: 8 GB @ 1333 MHz
Motherboard: Gigabyte Z68X-UD3H-B3
GPU: EVGA GTX 570
Hard Drives: Two Samsung Spinpoint F3 HD103SJ in RAID 0 configuration (using onboard Intel RAID controller, not dedicated controller)
DVD Drive: Some generic drive I ripped out of an HP/Compaq machine. Uses SATA interface.

I've installed Ubuntu on loads of machines but this is the first time I've installed it on a computer with RAID configuration. I'm still new to the whole RAID business but I figured I'd try it out and it's been working fine for a year now on Windows 7. It's probably something I did wrong on my end with the hardware setup so I'm gonna try a few things. It might be worth mentioning that I also installed the Windows 8 Developer Preview (from back in August of last year I think) but deleted it after a couple months. I have yet completely wipe my disks because I don't have enough backup storage to mirror the data to another drive (built this system last summer before hard drive prices skyrocketed from the flooding in Thailand).

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.10.16
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 Apr 27 10:17:58 2012
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 TERM=linux
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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