Comment 2 for bug 267966

Change these lines ->

def determinecaspersize(self):
        """Determine size of casper/ directory"""
        try:
            result = os.popen('du -sh /cdrom/casper').read()
            self.caspersize = int(str.split(result, "M")[0])

for ->

def determinecaspersize(self):
        """Determine size of casper/ directory"""
        try:
            result = os.popen('du -sm /cdrom/casper').read()
            self.caspersize = int(str.split(result)[0])

Casper in SuperUbuntu is bigger of 1GB, these changes work for my

Sorry for my bad english