Comment 1 for bug 57189

Ubiquity often tells you to file bugs against it when things go wrong.

Sadly, it's difficult for someone to determine which part of the
installation process is failing. We try to sort bugs into the right place.

Of course, adding documentation is a good thing, but there really
isn't an official document that describes this adequately. You may
wish to edit http://ubuntuguide.org/wiki/Dapper and add this information
there.

Thanks.