Install MySQL silently, without root password prompt.
export DEBIAN_FRONTEND=noninteractive MYSQL_PASSWORD='razvan' apt-get -y install mysql-server echo "Give mysql server time to start up before we try to set a password..." sleep 5 mysql -uroot -e <<EOSQL "UPDATE mysql.user SET Password=PASSWORD('$MYSQL_PASSWORD') WHERE User='root'; FLUSH PRIVILEGES;" EOSQL