Bricking for fun and pleasure

[Marcus Leech]

I bricked a lab machine today by doing an olpc-update joyride-2000 on 
it--it was previously running
  ship.2 Build 656.

The system was unbootable, so I asked it to do a "fallback" boot, which 
fell back to the 656 load, but now
  the "/bin/su" command was made non-executable to ordinary plebs.  This 
effectively prevents me from
  doing the things I want to do.  Yikes!

Now I *really* need developer keys for the XOs in my lab, so that I can 
cleanly back out of a situation like
  this.

Sigh.

Marcus