I have added today new disk for home partition. Until now everything was placed on one 10GB disk with the system.  Now myrkr have second disk 500GB, which is used entirely by /home. Adding was easy as that commands:

fdisk -u wd1

disklabel -e wd1

newfs -O2 wd1e

And adding to fstab, that’s all. I have used FFS because LFS is still considered experimental and unstable. Now I can move my main repository of files to myrkr and can turn off kashyyyk so that I can be more green. ;-) kashyyyk from now on will be used only for multimedia things.