yes you need to make the partitions by using some linux systems, you could use ubuntu livecd (no need to install, just boot from the cd) or gparted livecd.
i've already done the two partitions but now i'm stuck in this step:
Unpack the archive contents in the second partition:
sudo mount /dev/sdd2 /mnt/flash
sudo tar -C /mnt/flash -jxvf rootfs.tar.bz2
sudo umount /dev/sdd2
when i type sudo mount /dev/sdd2 /mnt/flash it tells me that it doesnt exist
i don't get what exactly should i do
i have done the two partitions by using gparted in ubuntu graphically
Any hints?