Well Mint is 100% based
on Ubuntu, but over time more and more changes have been made. Mostly things have been added, but also removed and changed so by now there is a considerable difference, but as I am not a developer I could not give you a percentage
Most (but not quite all) solutions for Feisty work in Mint 3.x
No we don't have a text based installer - it would take to much resources to develop (it's not just to put the live cd in a "cruncher" and wait for the result
Until that post came, I was stuck.
Ek0nomik, does this mean that you've installed?
The solution I mentioned but did not give is in this link
Try break=bottom or =top or =button till you get a command prompt - it's obviously varying which one will do that depending on your system