For the time being, here are the proposed solutions : 1. opensuse's snapper 2. Guix 3. nixos 4. Amanda 5. Ubuntu with ZoL (ZFS on Linux) 6. ZFS boot menu Mario, Anssi, Christoph, David, DdB, Gene, Jeffrey: Thank you all for your providing feedback! Best, -- yassine -- sysadm +213-779 06 06 23 http://about.me/ychaouche Looking for side gigs.