Comment 6 for bug 557388

I don't believe that UNetbootin is actually leaving out filesystem.size (at any rate I just tried running several versions it on various platform to create a Ubuntu 11.10 live USBs and the file is indeed there every time); rather it seems that the bug reports where , for whatever reason, the users unmounted /cdrom before starting the installer, in which case of course it wouldn't be found; see, for example https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/875190 (first line: "Did umount -l -r -f /media/cdrom before starting the installer") and http://ubuntuforums.org/showthread.php?p=10225227 ("... it seems like people got it right by manually unmounting /cdrom. When I tried that however..."); those 2 are the only references that I have found that seem to claim that UNetbootin left out the file. So unless there's actually someone who has actually checked the filesystem and found that the filesystem.size file is missing, this should be marked invalid for UNetbootin.