Comment 68 for bug 260001

I've installed many times ubuntu on my "fake" Raid 0 Intel ICH10 (P5Q Deluxe).
Any time, i type on the terminal "sudo apt-get install dmraid", I click on Install and Ubiquity crash in the end of setup process.
I reboot my pc, again "sudo apt-get install dmraid"... and I do a manual installation of grub:
sudo apt-get install dmraid
ls /dev/mapper
sudo mkdir /target
sudo mount /dev/mapper/isw_daeghacjej_Raid2 /target
sudo mount --bind /dev /target/dev
sudo mount -t proc proc /target/proc
sudo mount -t sysfs sys /target/sys
sudo chroot /target
apt-get update
apt-get install dmraid
apt-get install grub --reinstall
mkdir /boot/grub
cp /usr/lib/grub/x86_64-pc/* /boot/grub
grub --no-curses

       [ Minimal BASH-like line editing is supported. For
         the first word, TAB lists possible command
         completions. Anywhere else TAB lists the possible
         completions of a device/filename. ]
grub> device (hd0) /dev/mapper/isw_daeghacjej_Raid
grub> find /boot/grub/stage1
grub> root (hd0,1)
grub> setup (hd0)
grub> quit
quit

update-grub
nano /boot/grub/menu.lst
Changed the '# groot=(hd0,0)' to '# groot=(hd0,x)' (using the partition you found earlier, again).
update-grub

I hope that soon I can install Ubuntu WITHOUT this long process.