To restart Mac in Sierra: When you see the High Sierra could not be installed on your computer message, instead of choose quit the installer and restart, click Apple menu System Preferences Startup Disk, select Sierra system and click Restart to start up your Mac in Sierra. Solution 3: Mount startup disk Some users posted this solution on Mac forum to fix the macOS could not be installed on your computer error.
Restart your iMac or MacBook and hold down CommandR to boot your Mac into recovery mode Choose Disk Utility and mount the startup disk. It prompts you to select a startup disk, select the High Sierra boot disk.
#COULDNT UNMOUNT DISK VERIFICATION#
‘Disk Erase failed with the error: Couldn’t unmount disk.’ The error occurs in such situations like formatting Mac as well as partitioning and verification and repairing of Mac disk. Solution 4: Reinstall macOS in Recovery mode There are other users who find it helpful to reinstall macOS in Recovery mode: Enter the Mac into Recovery mode and choose Reinstall macOS from the Recovery menu. #CANNOT UNMOUNT DISK ERROR MAC VERIFICATION# Causes The reason for this error is the modification of the boot drive, or it is being used by some other process or application. Solution 6: Find.mpkg files via Terminal As the error shows, o, the OSInstall.mpkg file is missing. So finding the missing mpkg file and restarting the installation should make the error go away. Open Terminal and type this command: find -f OSInstall.mpkg grep OSInstall.mpkg.Ĭopy the file to startup partition according to this path: VolumesMacintosh HDSystemInstallationPackagesOSInstall.mpkg. Reboot your Mac and it should display the same Apple installation screen. #CANNOT UNMOUNT DISK ERROR MAC DOWNLOAD#.#CANNOT UNMOUNT DISK ERROR MAC PASSWORD#.
#CANNOT UNMOUNT DISK ERROR MAC VERIFICATION#.
0 kommentar(er)
