Comment 20 for bug 854837

Could you try adding the --debug boot parameter, using F6 at the CD boot menu (make sure --debug goes before the "--" at the end or it won't work)? Since this is surely a race condition, this may perturb timings such that the problem is more or less likely to occur, but if you can manage to reproduce this with --debug then please attach /var/log/syslog here.

So far I haven't managed to reproduce this myself ...