first aid mac volume could not be unmounted using live mode

How to fix 'File system check exit code is 8' error on an external hard drive? Step 1: Back up dataįortunately, the ' File system check exit code is 8' error is not difficult to solve.

How to fix 'File system check exit code is 8' error on macOS Monterey/Big Sur/Catalina/Mojave/High Sierra/Sierra? In this post, we will share some effective solutions. This error has a great chance to occur on both Macintosh HD and external hard drives. The ' File system check exit code is 8' error is especially found at the time of system check. I've done some searches, and I haven't found information on this error code.

I run First Aid in Disk Utility, but it just failed to fix the trouble and reported an error saying: 'The volume could not be verified completely. Last night, I tried ejecting the disc but got an error that it could not unmount. I have a WD external hard drive used to back up on High Sierra. While the 'File system check exit code is 8' indicates a corrupted file system is found during a check. Normally, the exit code 0 is a good thing, which means no error is found. But First Aid can only fix minor errors on disks, if the problem is beyond its reach, some error messages will be reported, such as 'File system check exit code is 8'. Disk Utility's First Aid is the most frequently used one.

MacOS contains a variety of tools for repairing disk, partition, and file system errors.

What is 'File system check exit code is 8' error? How to avoid 'File system check exit code is 8' error? Possible causes behind Disk Utility error code 8 How to fix 'File system check exit code is 8' error on Macintosh HD? How to fix 'File system check exit code is 8' error on an external hard drive?

First aid mac volume could not be unmounted using live mode