While running First Aid in Disk Utility on my Mac, I encountered the error “File system check exit code 8.” I’d like to know what this code means and how to fix the issue?
When running disk repair in Mac Disk Utility > First Aid, the error “File system check exit code 8” indicates that the file system has detected a severe error that cannot be automatically repaired. Common causes include:
- File system corruption (HFS+ or APFS structure abnormality).
- Bad sectors or physical damage on the hard drive.
- Unexpected power loss, system crashes, or improper disk ejection, leading to file system inconsistencies.
You need to manually repair the disk. Before doing so, make sure you have backed up any important data on the disk. If you don’t have a backup, you can choose to use data recovery software. I previously used iBoysoft Data Recovery for Mac, which has fast recovery speed and a high success rate. It can help you recover lost data from an external hard drive that has been corrupted due to the “File system check exit code 8” error. Download iBoysoft Data Recovery for Mac to get your data back.
For more detailed information and solutions, read: Fix the ‘File System Check Exit Code Is 8’ Error on Mac.