I have one of my computers dual booting with XP and Ubuntu. I set it up before I did much reading on Linux so I just have a 1 TB NTFS HD with one partition. I boot the computer to Ubuntu 99.9+% of the time. I use it mostly to transcode DVD with Handbrake. I think I'm running 10.10. I have had no problems whatsoever. My other computer triple boots with XP on one NTFS HD and Win7/Mint 12 on a separate HD. I have Mint in an ext3 partition and Win7 in a NTFS partition. So far not problems with that.