Comment 58 for bug 946663

I don't think this bug has anything to do with ntfs. This bug is very easily reproducible with ONLY a separate ext4 home partition, and no ntfs partitions at all. Quite a serious bug as keeping your home partition unformatted so you don't need to wipe all your data (for example I have 100+ gigs of music, thats a huge pia to have to copy over every 6 months). Upgrading using distro upgrade can often be problematic, so this is the best way to "clean install" and keep your data, this is something that really needs to work on final release (not to mention this bug also borks your previous install)