How to ignore S.M.A.R.T. error during El Capitan update? I have a disk with a S.M.A.R.T. error. In my particular case I know that it is relatively safe to continue to use my disk. I have error in SMART attribute #173 (wear level) but all those block overwrites happened in small volatile temp partition, my main system partition is safe. In short, I know what I'm doing.

I want to ignore this error and force the update. How to do that?
I had that happen to me with a 2011 MacBook Pro. Apple told me that the only thing that could be done was to replace the hard drive.