install FAI on a special machine

[Thierry Granier]

Hello
i need your help one more time please!

i have a machine (master) running Debian 8 with a lot of new packages 
installed and a lot of updates on all the packages.
this master has 2 disks :
     one for / and swap (all systemes packages) (disk1)
     another one for /home /opt /var /usr etc... (disk2)

I have a machine (client) running kali-linux with only 1disk and 100G free.

i'd like to "clone" the disk1 on the 100 free Gigas on the client

How can i do that with FAI?

Many thanks
Best regards
T Granier