Comment 19 for bug 346700

I believe the problem may be line number 134 of the install.py file:

        popen(['dd', 'if=/dev/zero', 'bs=%s' % persist, 'of=%s/casper-rw' % target, 'count=1'])

because count=1, any value of persist > 1G results in dd producing an 'invalid number' error on my system (maybe it depends how much RAM you have?) To generate a 2 gigabyte file, I would need persist to be 2M and 'count=1000' for example. Maybe somebody who knows python could fix this.