The upgrade from Catalina did not complete. After about 20 minutes, got this message:
The package "%@" is missing or invalid.
An error occurred while installing the selected updates.
Then it proceeded to install Catalina.
What's wrong? What should I do?
Thank you!
MacBook Pro (Retina, Mid 2015) Catalina 10.15.7
MacBook Pro 15″, macOS 10.15
Hello JoePlato,
Thanks for visiting Apple Support Communities. We understand that you're seeing an alert when trying to upgrade to macOS Big Sur. We can help! First, make sure all external devices are disconnected before trying to install. Then let's start to macOS Recovery and use Disk Utility to repair the hard drive. Here's how: How to repair a Mac disk with Disk Utility
After the repair is complete, restart your Mac normally. Then you'll want to delete the macOS Big Sur install file and download it again. The install file can be found in the Applications folder and the Launchpad. If you're using any security software, be sure to disable or temporarily remove it so it doesn't interfere with the connection and download.
Let us know how it goes.
Take care.
Hello JoePlato,
Thanks for visiting Apple Support Communities. We understand that you're seeing an alert when trying to upgrade to macOS Big Sur. We can help! First, make sure all external devices are disconnected before trying to install. Then let's start to macOS Recovery and use Disk Utility to repair the hard drive. Here's how: How to repair a Mac disk with Disk Utility
After the repair is complete, restart your Mac normally. Then you'll want to delete the macOS Big Sur install file and download it again. The install file can be found in the Applications folder and the Launchpad. If you're using any security software, be sure to disable or temporarily remove it so it doesn't interfere with the connection and download.
Let us know how it goes.
Take care.
Thank you for your help! It has worked. Running macOS Big Sur version11.2
One funny thing is that Software Update is offering to install Big Sur - the whole OS.
JoePlato,
That's great to hear! There was an update released to macOS Big Sur 11.2.1. Is that what you're seeing in System Preferences: How to update the software on your Mac
Keep us posted.
Cheers.
Big Sur Install Error "%@" on MacBook Pro
