Purportedly per Atlassian doc it should be possible to skip home zip creation when performing an unattended /automated upgrade. A home directory can become quite large so in real life cases not an option or very unpractical.
A manual upgrade will create a response file reponse.varfile with option
However, when you feed the installer with this option, the installer will still create the home zip!
There are more options that are ignored for example the option
will not stop the application from launching. BTW, this option comes from Atlassian documentation https://confluence.atlassian.com/doc/unattended-installation-838416261.html
The installer itself generates a different option
Hi, Confluence collaborators! As part of #Confluence-Collaboratory month, we’ve created a very special Mythsbusters segment, where we're dive into an interesting myth and uncover the truth behind i...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events