गेंतू फास्ट

Gentoo 12.0 LiveDVD
have VG in lvm

sudo su -
passwd

vgchange -a y
mkfs.ext4 /dev/sda3
mkfs.ext4 /dev/mapper/vgname-root
mount /dev/mapper/double-root /mnt/gentoo/
mkdir /mnt/gentoo/tmp; mount /dev/mapper/double-tmp /mnt/gentoo/tmp
mkdir /mnt/gentoo/boot; mount /dev/sda3 /mnt/gentoo/boot

eval `grep '^ROOT_' /usr/share/genkernel/defaults/initrd.defaults`
cd /
cp -avx $ROOT_LINKS /mnt/gentoo
cp -avx $ROOT_TREES /mnt/gentoo
cp /etc/passwd /etc/group /mnt/gentoo/etc

mkdir /mnt/gentoo/proc /mnt/gentoo/dev
cd /mnt/gentoo/dev
mknod -m 660 console c 5 1
mknod -m 660 null c 1 3
mount -t proc none /mnt/gentoo/proc
mount -o bind /dev /mnt/gentoo/dev
mkdir /mnt/gentoo/sys
chroot /mnt/gentoo /bin/bash
env-update && source /etc/profile
rc-update del autoconfig
exit

mount /newroot/mnt/cdrom/
cp /newroot/mnt/cdrom/boot/gentoo /mnt/gentoo/boot/kernel
cp /newroot/mnt/cdrom/boot/gentoo.igz /mnt/gentoo/boot/initramfs

/boot/grub/grub.conf:
root (hd0,2)
kernel /kernel root=/dev/ram0 dolvm real_root=/dev/mapper/double-root
initrd /initramfs

grub:
root (hd0,2)
setup (hd0)
quit

close()http://en.gentoo-wiki.com/wiki/Install_LiveDVD_11.2_to_hard_disk_drive

see more
http://ru.wikipedia.org/wiki/Aufs