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1. Mac could not unmount disk for repair install#
2. Mac could not unmount disk for repair upgrade#

Catalog files contain the record files of partitioned volumes. Then your Mac won’t mount the Macintosh HD, either. Perhaps, your Mac system or the Macintosh HD is attacked by virus or malware, resulting in data corruption. If the file system of the Macintosh HD is corrupted, the master file table will be impacted in a direct manner so the Mac won’t mount the drive. File system is responsible for how data is organized and stored in a drive. If you can’t mount your hard drive and the error -119930868 appears, it could be due to any of the following reasons: In other instances, the disk error appears no matter what action the user is trying to perform on the drive - whether it’s formatting, mounting, or erasing. In some cases, the drive is already mounted but not visible. About Outbyte, uninstall instructions, EULA, Privacy Policy. Unfortunately, several users have reported getting the error -119930868 whenever they try to mount the external drive using Disk Utility or the Terminal.

When users encounter this issue, the easiest way to resolve this is by mounting the drive manually. But there are times when the external drive doesn’t appear on any of these places and the data inside the unmounted external hard drive becomes inaccessible. When you connect an external hard drive on your Mac, it usually shows up on the Desktop, Finder, and Disk Utility. What causes the error -119930868 and how do you successfully mount your drive without getting this error? If you’re wondering about these questions, then read on to find out more.

Mac could not unmount disk for repair upgrade#

However, the occurrence of this error this time means that it is related to the recent upgrade to macOS Big Sur.

Mac could not unmount disk for repair install#

This poses a huge issue especially for those who decided to install macOS on that drive.Ĭom. error -119930868 is not a new error because Mac users have also encountered this in earlier versions of macOS. Not being able to mount their drives means not being able to access that drive. Several Mac users who have upgraded to macOS Big Sur have complained of getting the error -119930868 when mounting their hard drives.

When your Macintosh HD (disk0s2) cannot be mounted in Disk Utility, it means that there is something wrong somewhere and your Mac won’t turn on.