I tried twice to make the myHack install disk last night and it failed. One on a Mac VM and the other on a MacBook pro, both with OS X versions downloaded directly from the Mac App store. The program starts fine, and starts writing the initial files (~1000 MB of data) to the drive. About halfway through, the write stops, myHack reports that ~500 out of ~480 MB have been copied (104%) it then continues to try and make the disk with several chdir error messages. The program states that it completed succesfully, but the USB drive won't function at boot. The system outputs two lines of text: boot 1 or boot 0 and a spinning cursor and then hangs.