do-release-upgrade

apt-get upgrade -y
apt-get dist-upgrade -y
apt-get install -y update-manager-core
iptables -I INPUT -p tcp --dport 1022 -j ACCEPT
sudo sed -i 's/Prompt=.*/Prompt=normal/' /etc/update-manager/release-upgrades
rm /var/run/reboot-required*
do-release-upgrade --frontend=DistUpgradeViewNonInteractive

#"DistUpgradeViewText", "DistUpgradeViewGtk", "DistUpgradeViewKDE"

do-release-upgrade --frontend=DistUpgradeViewNonInteractive --proposed --allow-third-party
do-release-upgrade --frontend=DistUpgradeViewNonInteractive  --allow-third-party  --mode=server --proposed

do-release-upgrade --devel-release  --mode=desktop  --frontend=DistUpgradeViewNonInteractive  --allow-third-party