I have a 2017 MacBook Pro that was recently erased by my previous company. Now I can’t reinstall macOS — I keep getting a “File system check exit code is 8” error during installation. How can I fix this?
I’m sorry to hear that. When you encounter the “File system check exit code is 8” error, it usually means the macOS installer detected an issue with the file system during verification or repair. This is often caused by a corrupted or improperly formatted APFS volume.
The fastest way to fix this is by erasing the disk using Disk Utility. However, before doing so, you should first recover any important data from the disk. You can try using a professional data recovery tool like iBoysoft Data Recovery for Mac, which is designed to help recover files from damaged or inaccessible drives.
Once your data has been successfully recovered, you can boot into macOS Recovery mode. From there, open Disk Utility, click View in the upper-left corner, and select Show All Devices. Then choose the top-level disk (not just the volume underneath) and click Erase to reformat it.