2 minutes into the installation of big Sur after download the update fails and when I restart the machine and update my machine crashes and I am forced to download the original OS and install it. How can I resolve this. I have more than 140 GB of space more than the 35 required but no change to this error
Try the following:
#1 - boot into Safe Mode according to Start up your Mac in safe mode - Apple Support.
NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following;
• Verifies your startup disk and attempts to repair directory issues, if needed
• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)
• Prevents Startup Items and Login Items from opening automatically
• Disables user-installed fonts
• Deletes font caches, kernel cache, and other system cache files
#2 - go to the App Store, search for and download the full Big Sur installer.
#3 - run the installer from the Safe Mode.
I've had better luck goring thru the App store than thru the System/Software Update preference pane.
Try the following:
#1 - boot into Safe Mode according to Start up your Mac in safe mode - Apple Support.
NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following;
• Verifies your startup disk and attempts to repair directory issues, if needed
• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)
• Prevents Startup Items and Login Items from opening automatically
• Disables user-installed fonts
• Deletes font caches, kernel cache, and other system cache files
#2 - go to the App Store, search for and download the full Big Sur installer.
#3 - run the installer from the Safe Mode.
I've had better luck goring thru the App store than thru the System/Software Update preference pane.
So what year/model is your device and which OS version are you on now?
the model year 2019 and model A1990
the model year 2019 and model A1990 macOS Mojave
OS update to mac os big sur update
