how to auto-answer apt-get upgrade?

Question

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?

score 1 · Answer 1 · answered Mar 11 '15 at 10:22

1

You can try with the Yes command:

yes | sudo apt-get --assume-yes upgrade

answered Mar 11 '15 at 10:22

Panta

1,297

1

the grub prompt i get today wants me to select a choice action by moving a selector up or down the press enter. – Skaperen Mar 11 '15 at 10:31
it appears to be reading from /dev/tty instead of STDIN. – Skaperen Mar 12 '15 at 09:30

score -1 · Accepted Answer · edited Apr 13 '17 at 12:23

-1

i ended up doing apt-mark hold grub-legacy-ec2 ... the package that was triggering the problem to keep it from updating ... as suggested in a link found here: Blacklisting grub packages from installing

edited Apr 13 '17 at 12:23

Community

1

answered May 03 '15 at 10:49

Skaperen

435

how to auto-answer apt-get upgrade?

2 Answers2