Comment 10 for bug 39734

Because I had exactly the same problem with beta 1 & beta 2, I just tried flight 7 livecd, and the installer still crashes. The only difference to beta 1 & 2 is that the installer now shows an error report instead on crashing "silently", so I reported a new bug. (bug #45771)

You should also have a look at bug #45708 (also flight 7 livecd) as it's very similar to the one I've reported. But unlike my bug (#45771), in #45708 the installer didn't only crash but even screwed up the reporter's MBR and deleted several partitions.