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Ursprünglicher Beitrag von: Earl Robsham ,


Solid State Harddrive: fsck returning IO Error


Recently began experiencing random lagging while doing practically nothing (light web surfing), so I did some diagnostics using Disk Utility and Tech Tools Pro to see if I had any SMART failures or RAM issues, which all came back clear.   [br]

Then the Disk Utility first aid function came back with an error code(8 for anyone interested).

I decided to try rebooting into single-user(cmd-s at boot) and run fsck -fy which failed with out any real descriptive error other than “I/O Error” and something along the lines of disk verification couldn’t be completed…..  help?!

Its a old computer, but I replaced the harddrive with a new 500gb solid state maybe 5 years ago(+/-), and it doesn’t get super heavy use, mostly like paying bills and some occasional Factorio sessions.

Im thinking it might not be the solid state drive, but not sure how to really test my hypothesis without a 2.5” -> external  adaptor.


MacBook Pro 15" Unibody Late 2008 and Early 2009