As mentioned on the wiki, it would be great if you can attach a log file which may have captured any messages you see. If you are unable to capture a log file, a digital photo will work just as well. As a last resort you can even copy messages down by hand.
Can you follow the "Boot options" instructions on the following wiki to enable additional output on boot:
https:/ /wiki.ubuntu. com/DebuggingKe rnelBoot
As mentioned on the wiki, it would be great if you can attach a log file which may have captured any messages you see. If you are unable to capture a log file, a digital photo will work just as well. As a last resort you can even copy messages down by hand.