$ tar czf /var/lib/ganeti-$(date +\%FT\%T).tar.gz -C /var/lib ganeti
+ (``/var/lib/ganeti`` can also contain exported instances, so make sure to
+ backup only files you are interested in. Use ``--exclude export`` for
+ example)
+
#. Install new Ganeti version on all nodes
#. Run cfgupgrade on the master node::