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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? – 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 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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