#MAC COULD NOT UNMOUNT FOR REPAIR MAC#

When you macOS stuck in macOS could not be installed on your computer, you can boot your Mac into the Recovery Mode to restore from Time Machine.ДЎ) Hold down the power button to shut down your Mac.

#MAC COULD NOT UNMOUNT FOR REPAIR INSTALL#

Then you can try to reinstall macOS or install the updates again. Immediately, hold these four keys together: Option, Command, P and R for about 20 seconds.Дў) When your Mac finishes starting up, you can go to System Preferences to adjust any settings that were reset, like startup disk selection, display resolution or time zone.

If this is the case, you can try to reset your MacвЂ™s NVRAM to solve the problem.ДЎпј‰ Hold down the power button to shut down your Mac. If the starup settings stroed in NVRAM is wrong, you might get the macOS could not be installed on your co mputer error. NVRAM (nonvolatile random-access memory) is a small amount of memory that your Mac uses to store settingsпј€like start-up disk selection, time zone, display resolution and so onпј‰and access them quickly. Then set the date and time to correct ones.ДҐ) Tick on Set date and time automatically. If it doesnвЂ™t match, click the lock to enable to make changes. Once you do, hold down the power button to turn on your Mac.Дў) On your desktop, click the System PreferencesВ icon.Д¤) See if the date and clock match your current timezone. Follow to check the date and time on your Mac:ДЎ) Hold down the power button to shut down your Mac. The macOS could not be installed on your computer error is probably caused by the wrong time or date on your Mac. Fix 1: Check the Date & Time are on Set automatically Important: Before you go, remove the macOS install drive(if you insert one before) from your Mac. Whichever youвЂ™re experiencing, youвЂ™ll probably fix it with one or more methods below. The path /System/Installation/Packages/OSinstall.mpkg appears to be missing or damaged. And below вЂњmacOS could not be installed on your computerвЂќ youвЂ™re prompted with more details, it could be one of the followings: You may probably encounter this error when reinstalling your macOS, installing updates or even just turn on your Mac. Roll your sleeves up to follow this guide to troubleshoot the problem on your Mac. If youвЂ™re on macOS, and youвЂ™re seeing the warning saying macOS could not be installed on your computer that looks like the image above, it can be super frustrating.

Mac could not unmount for repair