When I run apt-get --yes upgrade in a script it sometimes stops and prompts for input.
Today in 14.04 LTS it is prompting for what to do for grub/menu.lst. I don't know what could be asked for in a future upgrade.
I tried running this with a newline piped in. I also tried just a carriage return. neither worked (seems like the input was lost). I did not find a suitable option in apt-get such as --no-prompts.
I tried the answer here but it still gives me a menu prompt asking what config choice I want.
Any idea how to bypass this prompt?