How to fix 'File system verify or repair failed. : (-69845)' on external drives?
- Plugging the drive into another computer to check whether it mounts correctly, then replug it on Mac to run First Aid again. Note that you need to safely eject the drive on Mac before pulling it out.
- Use another USB cable.
- Unplug the drive and replug it into a different port.
If these fixes don't help, continue with the other solutions below and rerun First Aid until error 69845 is eliminated.
Solution 1: Reboot your Mac
A simple reboot can solve many issues on Mac. So, when you get 'File system verify or repair failed. : (-69845)' together with 'File system check exit code is 8' or "Problem -69842 occurred while restoring the original mount state." error, don't hesitate to reboot your Mac.
Press and hold down the Power button until the Mac turns off. Wait a moment and then turn it on to run First Aid again. If First Aid still reports "File system verify or repair failed. :(-69845)" on the external drive, move on to the next fix.
Solution 2: Reformat the drive in Disk Utility
Reformatting is also a feasible way to fix disk errors when experiencing "File system verify or repair failed. : (-69845)" on an external drive, so you can reformat the hard drives on Mac to make it work again.
Please be reminded that reformatting a drive essentially means creating a new and blank indexing scheme, which will wipe all data on it. So once again, please make sure you have a backup copy or have recovered data from the corrupted external hard drive with iBoysoft Data Recovery for Mac.
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