Mac os high sierra unable to unmount volume for repair

Mac os high sierra unable to unmount volume for repair how to#
Mac os high sierra unable to unmount volume for repair mac os#

If yo don't have a backup and are afraid of messing up your Mac, you can restart the Mac to its previous version. You can download macOS High Sierra from App Store and try to start the installation again. As the Mac restarts, press and hold the Shift key until the Apple logo appears. To boot your Mac to safe mode, click Apple menu > Restart. The first solution that you can try is to re-download macOS installer in safe mode. Solution 1: Boot in Safe mode and re-download OS installer

If the macOS Sierra or High Sierra cannot be installed because of this error, here are the solutions. Some users receive this error during the installation of macOS High Sierra, which says: macOS could not be installed on your computer The path /System/Installation/Packages/OSInstall.mpkg appears to be missing or damaged Quit the installer to restart your computer and try again. Problem 2: The path/System/Installation/Packages/OSInstall. If you find it too much trouble to manually clear out Mac, use MacMaster to easily clean your Mac and get more free space. If the storage is not enough for the update, you may remove some unneeded files and apps to free up space.ДЇonePaw MacMaster (opens new window) is a cleaner that scans out unneeded apps, duplicated files, system junks, large old files and clean them in one click. It will shows how much free space is available on your Mac.

Click Apple Menu > About this Mac >Storage.

macOS High Sierra requires 8 GB free space on a drive and for the better performance of High Sierra, it is recommended to have at least 15-20 GB of storage.

Mac os high sierra unable to unmount volume for repair mac os#

After downloading a Mac OS installer, you try to install the OS but the installation cannot continue because it says there is not enough space on Mac for Sierra or High Sierra.Д«efore you are able to successfully install the macOS, you should know how many space it is needed to install the new update. You may have encountered the problem before.

Mac os high sierra unable to unmount volume for repair how to#

Problem 1: Not enough storage for macOS Sierra/High Sierra, how to fix? To troubleshoot macOS High Sierra/Sierra install problems, we include 5 common problems and their solutions. Sometimes, you cannot install a new Mac OS on your iMac, MacBook due to various installation problems. Installing macOS High Sierra, Sierra, El Capitan, Yosemite doesn't always go well.