I've raised a support call as this from my research could be one of many things. every support article ihave managed to find does not detail my specific issue or I cannot find the log or issue described that causes the error. I will update this when we get it resolved so it can be one more thing we can check if anyone else has the same issue.
a) IF it DID the Rollback Fully > Proceed with steps below
b) Remove EVERY Product or OLD Products you don't need (MAC/LINUX/Extensions/Test etc/Older Framework/Older VSE etc..)
c) Do this from MASTER REPESOTORY and also from EXTENSIONS
If you use RDP use options /CONSOLE /ADMIN and check that you have anb account that is local Admin
Remove VSE itself on the EPO during the Migration.
At which stage is it hanging and taking forever?
So what I founf fixed the particular issue I was facing was a Service was not getting created successfully as it was unable to create the firewall exception. I disabled the firewall, Ran the install which succeeded and then re-enabled the firewall and the rule was in place and working
BTW check this too:
I am not sure but I think this can help you:
Thanks for the information. I had found those and neither were my issue. For me there was a line in the xxxMSI.log stating that it failed to install a service and the firewall rule. Disabled the firewall and performed the upgrade and all worked perfectly.
thanks to share your experience.