I get a “Unknown Error executing Action” error when installing through unattended mode and a bat file. Not sure what the error is or where to find a log to check.
It does appear to install successfully though so not sure what it’s about. Just requires me to press “ok”.
I tried running the installer using the same arguments as you, but it finished without error. I then put it in a batch file, and that worked too. Finally, I added the ‘sc’ commands you were using before the installer command, and that resulted in the error. So it’s something to do with those lines. I’m guessing the problem is that the service still “exists” even though it’s been deleted (Windows tends to hang on to them sometimes), so when the installer tries to stop the service, it causes this error. You shouldn’t need to include these lines, since the installer handles the service as required.
One thing I noticed though was that the error actually closed automatically after being displayed for a few seconds, allowing the install to continue without intervention.
We actually had a problem with Deadline not closing the launcher before trying to install and failing but we were updating from like Beta 19 or RC1 or something so I didn’t log it as a bug since I assumed it was just a beta -> final installation conflict. The explicit service shutdown commands corrected that though.