"One theory: Did you _all_ get this very shortly after (or during) an upgrade from Jaunty to Karmic?"
Obviously I can't speak for anyone else, but that is precisely what happened to me. I got this error on my first reboot after upgrading from Jaunty to Karmic.
"One theory: Did you _all_ get this very shortly after (or during) an upgrade from Jaunty to Karmic?"
Obviously I can't speak for anyone else, but that is precisely what happened to me. I got this error on my first reboot after upgrading from Jaunty to Karmic.