Hi fsmithred and thanks for your reply.
So, no further DE customization on Refracta!
I'll keep xfce.
About installing refracta-tools, I've found the answer I was looking for here: refracta-installer-and-snapshot-used-on-other-distros-t111-40.htmll#p4595
I've downloaded (from http://ftp.icm.edu.pl/pub/Linux/sunsite ... acta/misc/
) live-config-sysvinit_4.0~a1-1.deb and managed it as above post indicated.
Then installed managed live-config-sysvinit_4.0~a1-1.deb and (with apt) live-config
Finally I've been able to install refractasnapshot-base and refractasnapshot-gui on Ubuntu 14.04.
EDITED AT 3:45 PM CET
just a question more:
for being able installing snapshots on some PC's HDD I'd must install refracta2usb and refracta-installer, right?
Then, token the snapshot, I must use refracta2usb to create the usb key or can I use something else? I'm asking that because usually I add ISOs to a multiboot usb key in which I've installed grub2 and for every ISO I add, simply I update grub.cfg manually and, being sincere, it would be the easiest solution, for me.
Finally, once booted target PC from ISO, CD/DVD or usb, just launch refracta-installer ... am I correct?
I'll try both on Xenial and on Mint Serena and let you know.