Related to this issue:
https://askubuntu.com/questions/146921/how-do-i-apt-get-y-dist-upgrade-without-a-grub-config-prompt
Change-Id: Ibe9df17192409e387840ce1862d576d35f3ce49d
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>
echo "---> Updating operating system"
apt-get update -qq
-apt-get upgrade -y --force-yes -qq
+DEBIAN_FRONTEND=noninteractive apt-get upgrade -y --force-yes -qq \
+ -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold"
# we need garethr-docker in our puppet manifest to install docker
# cleanly
echo "---> Updating operating system"
apt-get update -qq
-apt-get upgrade -y --force-yes -qq
+DEBIAN_FRONTEND=noninteractive apt-get upgrade -y --force-yes -qq \
+ -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold"
# To handle the prompt style that is expected all over the environment
# with how use use robotframework we need to make sure that it is