morph hardlink chroots

Hi guys, Here's my patch to give morph hardlink chroots. My branch is "joeburmeister/hardlink-chroots" Here's the time results of building a complete devel-system image on my virtual machine, with and without. original: real 5h 17m 47s Hardlink: real 2h 52m 27s Unionfs-fuse: real 3h 18m 51s I think we should look at in-kernel unionfs chroots still because it would be less disk writes, good for SSDs. But for the time being hardlinks are less writes then we are doing now, and much faster. Joe