I have a VMware virtual machine running Ubuntu 13.04, and yesterday tried to upgrade to 13.10. The install got about half way through and then everything seemed to just freeze completely.
I left it going overnight to see if it was just taking a while, but this morning it was still stuck. Nothing would respond at all so I had to just murder it and force a restart with VMware.
Now, when I try and boot the virtual machine back up, it just hangs forever at the Ubuntu splash screen.
How can I see what's actually going on behind the scenes rather than just seeing the splash screen sit there?