Hi and welcome to the forums :-)
Theoretically, Wubi installs to RAID are possible. In practice, this has not been well tested and not all configurations will work.
The best advice I can give right now is to look at this post and see if there is something that can help you:
http://ubuntuforums.org/showpost.php?p=10316642&postcount=54
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Windows is installed in the MBR of /dev/sdb
=> Windows is installed in the MBR of /dev/sdd
=> Windows is installed in the MBR of /dev/mapper/pdc_bjbaebfeb
=> Windows is installed in the MBR of /dev/mapper/pdc_djcgdachd
sdb1: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Mounting failed:
fuse: mount failed: Device or resource busy
fuse: mount failed: Device or resource busy
sdb2: __________________________________________________ _______________________
File system: ext3
Boot sector type: -
Boot sector info:
Mounting failed:
fuse: mount failed: Device or resource busy
fuse: mount failed: Device or resource busy
mount: /dev/sdb2 already mounted or sdb2 busy
sdb3: __________________________________________________ _______________________
File system: LVM2_member
Boot sector type: -
Boot sector info:
sdb4: __________________________________________________ _______________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sdb5: __________________________________________________ _______________________
File system: ext3
Boot sector type: -
Boot sector info:
Mounting failed:
fuse: mount failed: Device or resource busy
fuse: mount failed: Device or resource busy
mount: /dev/sdb2 already mounted or sdb2 busy
mount: /dev/sdb5 already mounted or sdb5 busy
sdb6: __________________________________________________ _______________________
File system: swap
Boot sector type: -
Boot sector info:
sdd1: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:
pdc_bjbaebfeb1: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs: /bootmgr /Boot/BCD
pdc_bjbaebfeb2: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files/dirs: /Windows/System32/winload.exe /wubildr.mbr
/ubuntu/winboot/wubildr.mbr /wubildr
/ubuntu/winboot/wubildr /ubuntu/disks/root.disk
/ubuntu/disks/swap.disk
pdc_bjbaebfeb2/Wubi: __________________________________________________ _______________________
File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed:
fuse: mount failed: Device or resource busy
fuse: mount failed: Device or resource busy
mount: /dev/sdb2 already mounted or sdb2 busy
mount: /dev/sdb5 already mounted or sdb5 busy
mount: unknown filesystem type ''
pdc_djcgdachd1: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:
pdc_djcgdachd2: __________________________________________________ _______________________
File system: ext3
Boot sector type: -
Boot sector info:
Operating System:
Boot files/dirs: /grub/menu.lst /grub/grub.conf
pdc_djcgdachd3: __________________________________________________ _______________________
File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed:
fuse: mount failed: Device or resource busy
fuse: mount failed: Device or resource busy
mount: /dev/sdb2 already mounted or sdb2 busy
mount: /dev/sdb5 already mounted or sdb5 busy
mount: unknown filesystem type ''
mount: unknown filesystem type ''
pdc_djcgdachd4: __________________________________________________ _______________________
File system: Extended Partition
Boot sector type: Unknown
Boot sector info:
pdc_djcgdachd5: __________________________________________________ _______________________
File system: ext3
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 9.10
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
pdc_djcgdachd6: __________________________________________________ _______________________
File system: swap
Boot sector type: -
Boot sector info:
=========================== Drive/Partition Info: =============================
Drive: sdb ___________________ __________________________________________________ ___
Disk /dev/sdb: 1500.3 GB, 1500301910016 bytes
16 heads, 63 sectors/track, 2907021 cylinders, total 2930277168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start End Size Id System
/dev/sdb1 2,048 2,612,080,799 2,612,078,752 7 HPFS/NTFS
/dev/sdb2 * 2,807,394,304 2,807,803,903 409,600 83 Linux
/dev/sdb3 2,807,803,904 2,930,276,351 122,472,448 8e Linux LVM
/dev/sdb4 2,612,080,800 2,807,392,895 195,312,096 5 Extended
/dev/sdb5 2,612,080,863 2,797,627,391 185,546,529 83 Linux
/dev/sdb6 2,797,627,455 2,807,392,895 9,765,441 82 Linux swap / Solaris
Drive: sdd ___________________ __________________________________________________ ___
Disk /dev/sdd: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start End Size Id System
/dev/sdd1 2,048 976,769,023 976,766,976 7 HPFS/NTFS
Drive: pdc_bjbaebfeb ___________________ __________________________________________________ ___
Disk /dev/mapper/pdc_bjbaebfeb: 80.0 GB, 79999795200 bytes
255 heads, 63 sectors/track, 9726 cylinders, total 156249600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start End Size Id System
/dev/mapper/pdc_bjbaebfeb1 * 2,048 206,847 204,800 7 HPFS/NTFS
/dev/mapper/pdc_bjbaebfeb2 206,848 156,246,015 156,039,168 7 HPFS/NTFS
Drive: pdc_djcgdachd ___________________ __________________________________________________ ___
Disk /dev/mapper/pdc_djcgdachd: 1500.0 GB, 1499999961088 bytes
16 heads, 63 sectors/track, 2906435 cylinders, total 2929687424 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start End Size Id System
/dev/mapper/pdc_djcgdachd1 2,048 2,612,080,799 2,612,078,752 7 HPFS/NTFS
/dev/mapper/pdc_djcgdachd2 * 2,807,394,304 2,807,803,903 409,600 83 Linux
/dev/mapper/pdc_djcgdachd3 2,807,803,904 2,930,276,351 122,472,448 8e Linux LVM
/dev/mapper/pdc_djcgdachd4 2,612,080,800 2,807,392,895 195,312,096 5 Extended
/dev/mapper/pdc_djcgdachd5 2,612,080,863 2,797,627,391 185,546,529 83 Linux
/dev/mapper/pdc_djcgdachd6 2,797,627,455 2,807,392,895 9,765,441 82 Linux swap / Solaris
/dev/mapper/pdc_djcgdachd3 ends after the last sector of /dev/mapper/pdc_djcgdachd
blkid -c /dev/null: __________________________________________________ __________
Device UUID TYPE LABEL
/dev/loop0 iso9660 Ubuntu 10.10 amd64
/dev/loop1 squashfs
/dev/mapper/pdc_bjbaebfeb1 28BC930ABC92D1A4 ntfs System Reserved
/dev/mapper/pdc_bjbaebfeb2 20449682449659FC ntfs
/dev/mapper/pdc_bjbaebfeb: PTTYPE="dos"
/dev/mapper/pdc_djcgdachd1 FC28534A285302D6 ntfs Large Drive
/dev/mapper/pdc_djcgdachd2 c811371d-bef2-4f68-a68e-5044af7b2a55 ext3
/dev/mapper/pdc_djcgdachd5 6e0a7195-e2ea-4b89-b609-190e619395a5 ext3
/dev/mapper/pdc_djcgdachd6 69ef8d2b-08c0-424f-bc83-5db371c18e7e swap
/dev/mapper/pdc_djcgdachd: PTTYPE="dos"
/dev/sda promise_fasttrack_raid_member
/dev/sdb1 FC28534A285302D6 ntfs Large Drive
/dev/sdb2 c811371d-bef2-4f68-a68e-5044af7b2a55 ext3
/dev/sdb3 JP4xKF-lrCv-bwsK-GQNi-vkd1-NyjA-2aEM5j LVM2_member
/dev/sdb4: PTTYPE="dos"
/dev/sdb5 6e0a7195-e2ea-4b89-b609-190e619395a5 ext3
/dev/sdb6 69ef8d2b-08c0-424f-bc83-5db371c18e7e swap
/dev/sdb promise_fasttrack_raid_member
/dev/sdc promise_fasttrack_raid_member
/dev/sdd1 46E20807E207FA47 ntfs External_Zion
/dev/sdd: PTTYPE="dos"
error: /dev/mapper/pdc_djcgdachd3: No such file or directory
error: /dev/mapper/pdc_djcgdachd4: No such file or directory
=============================== "ls -R /dev/mapper/" output: ===============================
/dev/mapper:
control
pdc_bjbaebfeb
pdc_bjbaebfeb1
pdc_bjbaebfeb2
============================ "mount | grep ^/dev output: ===========================
Device Mount_Point Type Options
aufs / aufs (rw)
/dev/loop0 /cdrom iso9660 (ro,noatime)
/dev/loop1 /rofs squashfs (ro,noatime)
/dev/sdd1 /media/External_Zion fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_ permissions)
======================== pdc_djcgdachd2/grub/grub.conf: ========================
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
# all kernel and initrd paths are relative to /boot/, eg.
# root (hd0,1)
# kernel /vmlinuz-version ro root=/dev/mapper/vg_zion-lv_root
# initrd /initrd-version.img
#boot=/dev/sdb2
default=0
timeout=5
splashimage=(hd0,1)/grub/splash.xpm.gz
hiddenmenu
title Fedora (2.6.30.10-105.2.23.fc11.x86_64)
root (hd0,1)
kernel /vmlinuz-2.6.30.10-105.2.23.fc11.x86_64 ro root=/dev/mapper/vg_zion-lv_root rhgb quiet
initrd /initrd-2.6.30.10-105.2.23.fc11.x86_64.img
title Other
rootnoverify (hd0,0)
chainloader +1
============== pdc_djcgdachd2: Location of files loaded by Grub: ==============
1437.4GB: grub/grub.conf
1437.4GB: grub/menu.lst
1437.4GB: grub/stage2
1437.3GB: initrd-2.6.30.10-105.2.23.fc11.x86_64.img
1437.3GB: vmlinuz-2.6.30.10-105.2.23.fc11.x86_64
====================== pdc_djcgdachd5/boot/grub/grub.cfg: ======================
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s /boot/grub/grubenv ]; then
have_grubenv=true
load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
saved_entry=${prev_saved_entry}
save_env saved_entry
prev_saved_entry=
save_env prev_saved_entry
fi
insmod ext2
set root=(hd1,5)
search --no-floppy --fs-uuid --set 6e0a7195-e2ea-4b89-b609-190e619395a5
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/white
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
menuentry "Ubuntu, Linux 2.6.31-20-generic" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd1,5)
search --no-floppy --fs-uuid --set 6e0a7195-e2ea-4b89-b609-190e619395a5
linux /boot/vmlinuz-2.6.31-20-generic root=UUID=6e0a7195-e2ea-4b89-b609-190e619395a5 ro quiet splash
initrd /boot/initrd.img-2.6.31-20-generic
}
menuentry "Ubuntu, Linux 2.6.31-20-generic (recovery mode)" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
insmod ext2
set root=(hd1,5)
search --no-floppy --fs-uuid --set 6e0a7195-e2ea-4b89-b609-190e619395a5
linux /boot/vmlinuz-2.6.31-20-generic root=UUID=6e0a7195-e2ea-4b89-b609-190e619395a5 ro single
initrd /boot/initrd.img-2.6.31-20-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd1,5)
search --no-floppy --fs-uuid --set 6e0a7195-e2ea-4b89-b609-190e619395a5
linux /boot/vmlinuz-2.6.31-14-generic root=UUID=6e0a7195-e2ea-4b89-b609-190e619395a5 ro quiet splash
initrd /boot/initrd.img-2.6.31-14-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic (recovery mode)" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
insmod ext2
set root=(hd1,5)
search --no-floppy --fs-uuid --set 6e0a7195-e2ea-4b89-b609-190e619395a5
linux /boot/vmlinuz-2.6.31-14-generic root=UUID=6e0a7195-e2ea-4b89-b609-190e619395a5 ro single
initrd /boot/initrd.img-2.6.31-14-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/11_Windows ###
menuentry "Windows 7 Pro 64 Bit" {
insmod ntfs
set root=(hd0,2)
search --no-floppy --fs-uuid --set 982A00CF2A00AC76
chainloader +1
}
### END /etc/grub.d/11_Windows ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
========================== pdc_djcgdachd5/etc/fstab: ==========================
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# / was on /dev/sdb5 during installation
UUID=6e0a7195-e2ea-4b89-b609-190e619395a5 / ext3 errors=remount-ro 0 1
# swap was on /dev/sdb6 during installation
UUID=69ef8d2b-08c0-424f-bc83-5db371c18e7e none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
============== pdc_djcgdachd5: Location of files loaded by Grub: ==============
1337.7GB: boot/grub/core.img
1337.6GB: boot/grub/grub.cfg
1337.6GB: boot/initrd.img-2.6.31-14-generic
1337.6GB: boot/initrd.img-2.6.31-20-generic
1337.7GB: boot/vmlinuz-2.6.31-14-generic
1337.7GB: boot/vmlinuz-2.6.31-20-generic
1337.6GB: initrd.img
1337.6GB: initrd.img.old
1337.7GB: vmlinuz
1337.7GB: vmlinuz.old
=========================== Unknown MBRs/Boot Sectors/etc =======================
Unknown BootLoader on pdc_bjbaebfeb2/Wubi
00000000 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 |0000000000000000|
*
00000200
Unknown BootLoader on pdc_djcgdachd3
Unknown BootLoader on pdc_djcgdachd4
=============================== StdErr Messages: ===============================
ERROR: pdc: wrong # of devices in RAID set "pdc_bjbaebfeb" [1/2] on /dev/sdc
ERROR: pdc: wrong # of devices in RAID set "pdc_bjbaebfeb" [1/2] on /dev/sda
ERROR: dos: partition address past end of RAID device
umount: /isodevice: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
hexdump: /dev/mapper/pdc_djcgdachd3: No such file or directory
hexdump: /dev/mapper/pdc_djcgdachd3: No such file or directory
hexdump: /dev/mapper/pdc_djcgdachd4: No such file or directory
hexdump: /dev/mapper/pdc_djcgdachd4: No such file or directory
ERROR: pdc: wrong # of devices in RAID set "pdc_bjbaebfeb" [1/2] on /dev/sdc
ERROR: pdc: wrong # of devices in RAID set "pdc_bjbaebfeb" [1/2] on /dev/sda
ERROR: dos: partition address past end of RAID device