macOS Catalina installer freezes just after choosing disk I'm trying to install macOS Catalina. Currently I have Mojave, macbook pro 13", mid 2012. System suggested this upgrade so I decided to install it right away :)

When Catalina installer started it asked about accepting license and then to choose disk. After that beachball of death appears i.e. the installer process is frozen (and is marked red in Activity Monitor).
After 30m I force killed this process and retried 3 times, so far.

How can I determine what is slowing or stopping my installation?
I found a fix for me.
Something told me that a disabled Spotlight might be the reason (I had similar issue long time ago and re-enabling Spotlight did the job).

If you have Spotlight disabled, then re-enable it using this in Terminal:

sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist


After installation you can disable it once again :) Hope it helps someone.

*Can also make this change in System Preferences > Spotlight > Privacy = Then drag and drop hdd into the window. To undo the action, just click on the hdd, and select the minus symbol. This did the trick for me.