freebsd-update command prints updating entries after it downloaded. But it shows them with
more. So I have to press some spaces to continue. Is there a way to avoid this behavior? I want to execute update fully automated manner.
Before doing any of this make sure you are familiar with the freebsd-update process, possible ramifications, and requirements. Like any automated update there is a chance it will screw up.
Create the file
The number 912 is arbitrary, it's just the number I use. You can pick anything in the 900 range and it should work fine.