I just got bitten by this bug myself.As a long time gentoo + ubuntu user, I was baffled after getting the solution to this problem. I have worked through several different kind of fstab files, but this was a serious wtf. Why wasn't removable storage working for me? I just couldn't figure it out, everything 'looked' normal.
I'd increase the severity of this report, as it is far far from obvious. Olliver