update monterey from Mojave shows checking null

I fixed the issue:

The problem: the hard drive got renamed during the reformatting.

The fix:

• shut down. If unable, hold down power button for 5 seconds.
• Start it back up and press Command + R until you see the apple logo.
• Select Disk Utility
• Select the topmost item on the left side panel
• Click on the Name field on the right side, and rename it to Macintosh HD.
• Now click erase icon.
• A pop up window will appear to create a new thing with the name as Macintosh HD, and whatever in the second field.
• Click yes/ok
• After its done, exit Disk utility
• Now select Reinstall OSX
• After its done, Go to App store and search MacOS Monterey or whichever
• When you click Get, it will install through the Software Update utility

How do I get 'checking null' to fi… | Apple Developer Forums

P Phiilips

Dec 11, 2021 8:32 AM in response to ratheeshfromwarangal

This look like what happen if there is already an Application called " Install Monterey " sitting in the Application folder. If it exist, Drag and Drop to Trash and Empty Trash.

unable to upgrade OS mojave to monterey - Apple Community

Thanks for this question, you can visit this update Monterey from Mojave shows checkin… - Apple Community. hope your question is solved.

Thank You!!