cfdisk /dev/sda
cfdisk /dev/sdc
sfdisk -d /dev/sda | sfdisk /dev/sdb
sfdisk -d /dev/sdc | sfdisk /dev/sdd

mdadm -v --create /dev/md0 --level=mirror --raid-devices=2 /dev/sd{a,b}1
mdadm -v --create /dev/md1 --level=mirror --raid-devices=2 /dev/sd{c,d}1
mdadm -v --create /dev/md2 --level=5 --raid-devices=4 /dev/sd{a,b,c,d}2
mkfs.ext3 /dev/md0
tune2fs -c 0 -i 0 /dev/md0
mkswap /dev/md1
mkfs.ext3 /dev/md2
tune2fs -c 0 -i 0 /dev/md2

pvcreate /dev/md2
vgcreate mainvg /dev/md2

lvcreate -n home -L10G mainvg
mkfs.ext3 /dev/mainvg/home
tune2fs -c 0 -i 0 /dev/mainvg/home

lvcreate -n root -L5G mainvg
mkfs.ext3 /dev/mainvg/root
tune2fs -c 0 -i 0 /dev/mainvg/root

lvcreate -L 5G -n xen mainvg
mkfs.ext3 /dev/mapper/mainvg-xen
tune2fs -i 0 -c 0 /dev/mapper/mainvg-xen

mkdir /mnt/install
mount /dev/mapper/mainvg-root /mnt/install
mkdir /mnt/install/boot
mkdir /mnt/install/xen
mount /dev/md0 /mnt/install/boot

# cat /etc/debootconfig/config # relevant parts:
CHROOTMIRROR='ftp://ftp.tugraz.at/mirror/debian'
HOSTNAME='fufoxen'
MIRROR='ftp://ftp.tugraz.at/mirror/debian'
TARGET='/mnt/install'

# execute grml-debootstrap:
grml-debootstrap

# install Grub on /dev/md0:
chroot /mnt/install
mount -t proc none /proc
cp /proc/mounts /etc/mtab

# adjust /etc/fstab:
/dev/mapper/mainvg-root     /       auto    defaults,errors=remount-ro 0   1
/dev/md0                    /boot   auto    defaults 0 0
/dev/mapper/mainvg-home     /home   auto    defaults 0 0
/dev/mapper/mainvg-xen      /xen    auto    defaults 0 0
/sys           /sys         sysfs   rw,nosuid,nodev,noexec     0   0
proc           /proc        proc    defaults                   0   0
/dev/cdrom     /mnt/cdrom0  iso9660 ro,user,noauto             0   0

grub-install --recheck --no-floppy /dev/md0
update-grub -y
sed -i "s#kopt=root=.*#kopt=root=/dev/mapper/mainvg-root ro max_loop=256#" /boot/grub/menu.lst
update-grub -y

apt-get install asciidoc file-rc mailx mercurial \
                mutt ntp ntpdate postfix psmisc tob

apt-get install bridge-utils \
        libc6-xen  \
        linux-image-xen-686  \
        xen-hypervisor-3.0.3-1-i386  \
        xen-ioemu-3.0.3-1  \
        xen-linux-system-2.6.18-5-xen-686  \
        xen-tools  \
        xen-utils-3.0.3-1  \
        xen-utils-3.0.3-1 bridge-utils

xen-create-image --debootstrap --dir=/xen \
         --size=2Gb --memory=512Mb --fs=ext3 \
         --cache=yes --dist=etch --hostname=ufoxen1 \
         --ip 192.168.1.2 --netmask 255.255.255.0 \
         --gateway 192.168.1.1 \
         --initrd=/boot/initrd.img-2.6.18-5-xen-686 \
         --kernel=/boot/vmlinuz-2.6.18-5-xen-686 \
         --mirror=http://ftp.tugraz.at/mirror/debian

echo "options loop max_loop=256" >> /etc/modprobe.d/loop
echo loop >> /etc/modules