Aggiornare automaticamente ubuntu server.

Usare a proprio rischio e pericolo.

Tutto in modalità --trival-only, ovvero non aggiorna pacchetti essenziali come il kernel o pacchetti in cui la configurazione sia stata modificata (in questo caso manda un'e-mail).

YOUR_DISTRIB=karmic

sudo apt-get install cron-apt
sudo mv /etc/cron-apt/config /etc/cron-apt/config.old

cat << EOF > /etc/cron-apt/config /etc/cron-apt/config
MAILTO="ivan.molineris@gmail.com"
MAILON="output"
EOF

for i in /etc/cron-apt/action.d/*; do
  sudo mv $i $i.old;
done

cat << EOF > /etc/cron-apt/action.d/0-update
update -o quiet=2
EOF

cat << EOF > /etc/cron-apt/action.d/3-download
dist-upgrade -qq -d -y -o APT::Get::Show-Upgraded=true
EOF

cat << EOF > /etc/cron-apt/action.d/4-security_upgrade
dist-upgrade -q -y -t $YOUR_DISTRIB-security
EOF

cat << EOF > /etc/cron-apt/action.d/5-trivial_upgrade
dist-upgrade -qq --trivial-only
EOF

cat << EOF > /etc/cron-apt/action.d/6-autoclean
autoclean -qq -y
EOF

cat << EOF > /etc/cron-apt/action.d/9-notify 
-qq --no-act upgrade
EOF