Dec 1, 2019 9:30 AM in response to Mom-in-Micronesia
See if either of the following will help get the update installed:
Nov 30, 2019 6:02 AM in response to Mom-in-Micronesia
It sounds like the network connection to Apple's servers is not sufficient to complete the download.
Try taking the MacBook to another network and see if you can download there.
Dec 1, 2019 12:05 AM in response to Barney-15E
This is an installation. I already downloaded the OS X. It just won't install. Do I need a good connection to Apple to install?
Dec 1, 2019 2:33 AM in response to Mom-in-Micronesia
I advise to read here about all issues with Catalina. I propose not to install Catalina and wait until you are sure that you really want it.
Dec 1, 2019 5:13 AM in response to Mom-in-Micronesia
How big is the download? The full download which doesn't need to contact Apple's servers, is about 8GB.