It's a bit of a shock that the first boot goes straight into the debug output. Moreso because:
1. on windows 7 the boot manager is defaulted to boot straight to Ubuntu on the first boot so the user hasn't actually "selected" Ubuntu.
2. there is nothing like e.g. on the ISO install method you get a countdown offering to hit ESC for more options and then a quiet splash kernel load followed by the slideshow.
No, instead upon reboot you immediately get this flood of meaningless gobbledygook (not trying to be overly dramatic, but even after seeing it many times before it was a bit of a shock).
My recommendation: add 'quiet splash' to the boot options for the first load. Also, if possible an opportunity to 'hit ESC' to provide some kernel boot overrides.