2010 mbp and my boot disk won't mount. So in recovery mode I try to run first aid on my ssd and it says "first aid found a corruption that needs to be repaired. To repair the startup volume, run first aid from recovery. " But that's exactly what I'm doing. If I try to run first aid on the bootdisk partition I get a bunch of errors Is there something else I can do from disk utility to save my disk or should I erase it and reinstall?