Originally Posted by MrDanjer
This worked for me. I had started a previous thread asking how to do this, and got some suggestions but none of them worked. After installing about 8 different recovery.img's and installation combos, I got lucky and this one worked for my Nexus S. I documented the steps and wrote them, then tested them once more and everthing worked as it should.
That's great news for anyone that wants to do this - thanks!
Added a link to this from the Root Sticky in the All Things Root section.