Ubuntu installation with lvm2

create usb: dd if=ubuntu.iso of=/dev/sdx bs=2048

when inside ubuntu-live, install lvm2 and mount or create vg, lv. apt-get install lvm2 modprobe dm-mod partprobe

choose file system folders and install ubuntu.

chroot to newly created system and install lvm2 <code> root@ubuntu:/home/ubuntu# mount /dev/vg00/lvroot /mnt/ root@ubuntu:/home/ubuntu# mount /dev/sda1 /mnt/boot root@ubuntu:/home/ubuntu# mount /dev/vg00/lvvar /mnt/var root@ubuntu:/home/ubuntu# mount /dev/vg00/lv_tmp /mnt/tmp root@ubuntu:/home/ubuntu# mount -o bind /dev /mnt/dev root@ubuntu:/home/ubuntu# mount -o bind /sys /mnt/sys root@ubuntu:/home/ubuntu# mount -t proc none /mnt/proc </code>

chroot like above.

grub-install –force /dev/sda1