I was able to install BC on Ubuntu 6.10 with no issues. Just use the Eject button on our installer dialog to change CDs. Ubuntu will automount when you insert the next CD, the installer will then just detect the CD insertion and continue.
The only issue I encounterd was that the intro movie was cut in half, only the right half of the movie was playing. Strange. I don't recall that happening with the original cinematic. Possible this one is encoded in a new codec and that codec has an issue. Minor issue though.