apt-get upgrade -y

apt-get dist-upgrade -y

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apt-get install -y update-manager-core

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iptables -I INPUT -p tcp --dport 1022 -j ACCEPT'  

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sudo sed -i 's/Prompt=.*/Prompt=normal/' /etc/update-manager/release-upgrades

rm /var/run/reboot-required*

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do-release-upgrade --frontend=DistUpgradeViewNonInteractive

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

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

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