query A%20system%20software%20upgrade%20is%20available.%20Would%20you%20like%20to%20install%20the%20upgrade%20now?%20If%20you%20defer,%20you%20will%20be%20given%20the%20option%20to%20upgrade%20again%20before%20the%20machine%20goes%20to%20sleep.
defer Defer
doupgrade Upgrade%20Now
ok OK
status-updating Downloading%20update...%20This%20may%20take%20a%20few%20minutes.
status-install Installing%20update:%20--%20WARNING%20--%20interrupting%20your%20machine%20at%20this%20time%20may%20render%20it%20unbootable!
success The%20upgrade%20was%20successful.%20Your%20machine%20will%20reboot%20automatically%20in%2010%20seconds...
error-install A%20serious%20error%20has%20occured%20while%20installing%20the%20upgrade.%20Initiating%20recovery%20in%2010%20seconds...
error-verify The%20downloaded%20upgrade%20package%20is%20damaged.%20Another%20upgrade%20attempt%20will%20be%20made%20later.
error-download An%20error%20has%20occured%20while%20attempting%20to%20download%20the%20upgrade%20package.%20Another%20upgrade%20attempt%20will%20be%20made%20later.
error-memory There%20is%20not%20enough%20memory%20available%20to%20perform%20the%20upgrade.%20Another%20upgrade%20attempt%20will%20be%20made%20later.%20If%20this%20problem%20persists,%20you%20may%20need%20to%20use%20the%20recovery%20mechanisim%20to%20install%20the%20upgrade.
