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I've been trying to update my 15.04 machine to a more recent version, considering 15.04 is no longer supported.

The usual do-release-upgrade did not work. It showed that there is an update available (to 16.04, xenial), however, if I tried to run it, I received the following error: An upgrade from 'vivid' to 'xenial' is not supported with this tool.

After some googling, I've read that I had to upgrade 15.04 to 15.10 first and then to 16.04.

To upgrade to 15.10 I was supposed to use do-release-upgrade -d. But it did not do the trick. It said there were no upgrades available.

I have also tried solution suggested at How to install software or upgrade from an old unsupported release? but with no success. When I manually looked at http://old-releases.ubuntu.com/ubuntu/dists/ I could not even find files for Vivid nor Wily.

So how could I upgrade my machine? Doing fresh install is really not an option at this point.

Thank you in advance!

Arronical
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jstuczyn
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1 Answers1

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There is no longer a supported upgrade path from 15.04 to any newer release; you cannot upgrade to 15.10, because it is no longer available from Canonical, and you cannot upgrade to a newer version without that step. Your only choice is to install clean, with appropriate data preservation steps first.

Zeiss Ikon
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