I had this at my last install. Seems it comes up either when external hard drive or USB disk attached and mounted or (and this is when it becomes important per what I see) when you - like I did - before installing check out what is on the hard drive of the computer and thus mount and open one or more partition there. It happened to me with the latest 13.04 installer from Live CD mode. Should be changed as suggested above.
Gabor -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/540692 Title: "unmount partitions that are in use?" dialog is confusing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/540692/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
