Solved!Ended with error:zfs mount failed with error 5.
Mounted manually and all works great except any kind of network drivers but I think this is easy fix.

Booted from usb drive and it runs flawlessly,but after install hangs on ghostbsd logo.Its installed on ext hdd drive in enclosure...tried rEFInd and standart FreeBSD loader.It starts loading,keyboard and mouse are lid and suddenly stops. EDIT:hangs on ugen2.8; <Apple, Inc. product 0x8242> at usbus2 ...