Can't upgrade Management Server Virtual from 9.11 to 10.2

I'm having this problem:

https://www.dell.com/support/article/us/en/19/sln314455/after-upgrading-dell-security-management-server-virtual-from-v911-to-100029-core-server-and-inventory-server-fail-to-start?lang=en

Core server and inventory server won't start after upgrade.
I tried calling Pro Support but they just want to use webex, which doesn't work for me. They won't give me the script. Can someone put a download link to the script or point me in the right direction to get this solved.
I don't want to spend time troubleshooting webex just because Dell wants to use that crappy software.