@cihangirb,
you know, i was unable to reproduce 
Even more, after “clean reinstall” (hw remained the same: 3 nodes, 4CPU x 4GB RAM; by the way, i saved all logs folder contents from “stucked installation”, ~ 15M per node .bz2), everything looks predictable:
… ? hmm.
UPDATE: oh-oh:
Is it possible at all ?
UPDATE2: opps №2:
… and my test-script died around here.