I cannot update to macOS Catalina on my iMac.
I cannot update to OS Catalina on my iMac. I click upgrade now and the status bar shows the progress of 8.23 gb. Once 8.23 gb is downloaded it just stops. There is never an error message the screen just refreshes to "upgrade now." I've tried multiple times - even after restarting my Mac. I am currently running macOS Mojave