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I have couple of very old Ubuntu servers running that I HAVE to upgrade, I cannot install new machine. Old as in 12.04 LTS version old. I did try new install of 12.04 and upgrade that to 14.04 and all the way to 22.04 and it works. I just do not find any information about how long I will be able to upgrade 12.04 to newer versions.

kovica
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    Does this answer your question? [How to install software or upgrade from an old unsupported release?](https://askubuntu.com/questions/91815/how-to-install-software-or-upgrade-from-an-old-unsupported-release) – Artur Meinild Aug 16 '23 at 11:27
  • Please note that however you go about this, it's totally unsupported, since it was never meant to upgrade from such old releases. – Artur Meinild Aug 16 '23 at 11:28
  • Ubuntu 12.04 LTS upgraded to 14.04, which is already *end of standard support*. Ubuntu 12.04 ESM is no longer supported, and its upgrade path to 14.04 ESM has ended too I believe, but ESM support isn't on-topic on this site anyway – guiverc Aug 16 '23 at 11:33
  • @ArturMeinild this will come handly when regular "do-release-upgrade" does not function anymore. I need the date until it will function without needing to manually alter sources.list – kovica Aug 16 '23 at 11:53
  • there is no date except it mentions the word **after** EOL; where the release team modify https://changelogs.ubuntu.com/meta-release and the *Supported: 1* is changed to *Supported: 0* and the [Ubuntu-release-upgrader](https://launchpad.net/ubuntu/+source/ubuntu-release-upgrader) tool will no longer allow upgrade. (*historically this has ranged from hours **after** to many months after; though looking at whats in queues in the days before EOL is probably your best bet at predicting*) – guiverc Aug 16 '23 at 12:27
  • ^ my *months* is incorrect... the *Ubuntu Release Team* have a list of tasks to perform, and the *months* relates to later steps in their procedures... the modification of that file is early on that list, thus *weeks* (if not *day(s)*) maybe more accurate for the modification of that file (compared to my *months*) sorry (*months* being all tasks when a release reaches EOL) – guiverc Aug 16 '23 at 12:34
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    There is an english expression for this: "Living on borrowed time." You **already** should not be able to release-upgrade Ubuntu 12.04. You are very fortunate that you can. – user535733 Aug 16 '23 at 12:35
  • @guiverc Thanks for the meta-release link. OK, since 14.04 has "Supported: 1" I was able to upgrade to it and 14.04 is supported until April 2024 (https://wiki.ubuntu.com/Releases) so I should be able to upgrade to 14.04 at least until April 2024? – kovica Aug 16 '23 at 12:54

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