Comment 19 for bug 49178

In my case xfs and ntfs had nothing to do with the bug. It had everything to do with trying to use an
old /var partition. For some reason the installer only wants to work on cleanly formatted system
partitions like '/', and '/var'.

In my case I was trying to reuse an old '/var' (which had my web pages inside /var/www), and kubuntu
would have none of it. So I used a different idle partition as a new '/var', and formatted it, and it
worked. That was the only thing that changed between it not working and then beginning to work.