Hi, I received the following problems when I tried First Aid on my late 2013 MacBook Pro Retina: File system check exit code is 8. What exactly are these errors, and how could they be resolved? Thank you.
When you run First Aid on a drive and receive the “File system check exit code is 8” error, it typically indicates that Disk Utility was unable to repair the disk or partition. Exit code 8 suggests that there may be serious file system or hardware issues that First Aid couldn’t fix automatically.
When First Aid returns “File system check exit code is 8”, you can try to run First Aid a few times or try it in macOS Recovery mode, if it doesn’t work, you can try running fsck from Single-User Mode for a more in-depth check.
Unluckily, it fsck fails, the last resort is reformatting the drive, but you should recover the data first before doing that. Professional Mac data recovery software such as iBoysoft Data Recovery for Mac is recommended.