When upgrading Confluence with installer it still throw lots of confirmation to customer even saying no to Backup

Problem

When upgrading Confluence with installer it still throw lots of confirmation to customer even saying no to Backup.
Using our customer words:

... when the installer asks about the content that is or is not being affected, it requires an 'Enter' as a response (Even when we say no to backup the content since we perform our backups separately). We have a great amount of content and I had to press carefully one and each of these enters hundreds of times, which is a bit dangerous since a mistype could go wrong plus is extremely tedious. When I say hundreds I mean around 500 or more literally.

Suggested Solution

add a parameter to installer where customer can decide if they want to ignore the backup, or a question to ignore the rest of the process during installation

Why This Is Important

If customer have a huge amount of data as in this case they can mistype Enter

Workaround