fastboot flashall -w Halts I have a Samsung Nexus S.
I have erased recovery and boot pertitions using fastboot erase &lt;partition&gt;
and when I do fastboot flashall -w it stops on

sending 'boot' (XXXX KB)...

What might be wrong?

UPDATE:

I successfully managed to flashed my NS back to stock ROM.
Please refer to my own answer below.

Regards,
NOTE: attempting fastboot flash on ur device may cost you your data.
  So be careful


I figured out that I had an outdated Android SDK. I downloaded the latest one, and did:

fastboot flash boot

fastboot flash recovery

fastboot flash userdata

and in a couple of minutes I had the stock ROM up and running.