In case you use one SD card and one PSU to power the board, I would check that first: http://forum.pine64.org/showthread.php?tid=514
Then you should grab longsleep's newest Ubuntu Xenial image since if your SD card is not broken or ultra slow, booting will be finished within a minute and no voodoo is involved at all.
Then you should grab longsleep's newest Ubuntu Xenial image since if your SD card is not broken or ultra slow, booting will be finished within a minute and no voodoo is involved at all.