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I have a problem while upgrading from Ubuntu 14.04 to 18.04. We have few thousand devices on Ubuntu 14.04 that need to be upgraded to 18.04. I have tried to upgrade to 16.04 first. But when I try do-release-upgrade I get "No new release found".

What I'm trying is below.

## edit /etc/update-manager/release-upgrades, change never as lts
sed -i "/Prompt=/c\Prompt=lts" /etc/update-manager/release-upgrades

to make dpkg continue non-interactively


echo "force-confdef" >> /etc/dpkg/dpkg.conf
echo "force-confold" >> /etc/dpkg/dpkg.conf


to upgrade non-interactively


export DEBIAN_FRONTEND=noninteractive


update, upgrade and do-release-upgrade


apt-get -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" upgrade
apt-get -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" dist-upgrade
do-release-upgrade -d -f DistUpgradeViewNonInteractive
Pablo Bianchi
  • 15,657
Thiwanka Wimalasuriya
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  • Unless you're paying Canonical for extended maintenance, 14.04 went EOL a long time ago. It's a bit too late at this point to talk about upgrading and you should devise a plan to reinstall the OS. If you are paying Canonical for support, you should contact them. – Nmath Sep 15 '20 at 05:12
  • thanks @Nmath for your feedback. We have close to 10,000 devices on ubuntu 14.04 all over USA. We want to upgrade to 18.04 for security reasons. We would like to remotely upgrade due to cost of replacing devices. We are not paying for support. – Thiwanka Wimalasuriya Sep 15 '20 at 14:08
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    Yikes! Neglect from your IT dept has put your organization in a very deep hole... 14.04 has been EOL for so long, it's unlikely that upgrade to 16.04 will go well. You can't just skip to 18.04. I'm afraid that you are going to have to reinstall a supported operating system from scratch on each of these devices. An ounce of prevention is worth a pound of cure: Don't neglect regular maintenance and you would not find yourself in this kind of impossible situation. See: https://askubuntu.com/questions/91815/how-to-install-software-or-upgrade-from-an-old-unsupported-release – Nmath Sep 15 '20 at 15:16
  • 20.04 has just had it's first point release (20.04.1) and is a stable candidate for installation. I suggest installing 20.04.1 on your devices. Your organization will need to have a plan to upgrade these devices before April 2025 when 20.04 will reach EOL. – Nmath Sep 15 '20 at 15:17
  • Thank you @Nmath. I have contacted Canonical support on the same. – Thiwanka Wimalasuriya Sep 16 '20 at 09:23
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    Does this answer your question? How to install software or upgrade from an old unsupported release? and Can I skip over releases when upgrading? – karel Nov 01 '20 at 09:56

0 Answers0