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Is it still possible to upgrade Kubuntu /Ubuntu without wiping the root partition?

I mean something like this: Upgrading ubuntu from LiveDVD instead of do-release-upgrade.

This method will be handy in case of unstable internet.

(My current running systems are Kubuntu 17.10 and Ubuntu 16.04 LTS, and I want to upgrade to 18.04 as soon as it's released)

Zanna
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Sudarshan Kakoty
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  • See https://askubuntu.com/questions/39105/how-to-upgrade-ubuntu-from-an-iso-image . I am not sure if you can update from an .iso any longer or not. – Panther Dec 18 '17 at 07:43
  • No, The whole point of this question is different. "Is it still possible " is the actual point to this question. – Sudarshan Kakoty Dec 21 '17 at 06:01
  • @SudarshanKakoty: Please have a look at my response below on why it's not advised to do that any more... (It is possible,but you'd need 1.1 TB/4.3GB=256 DVDs to do it successfully and that is if you have no PPAs installed!) – Fabby Dec 22 '17 at 12:07
  • This sounds like an X-Y Problem. What are you actually trying to achieve? – David Foerster Jan 01 '18 at 14:46
  • @DavidFoerster This question has been resolved, I added my own answer with a screenshot below :) – Sudarshan Kakoty Jan 01 '18 at 15:15
  • I just wanted to upgrade Ubuntu to next release from a live DVD the way we could able to do in Windows. – Sudarshan Kakoty Jan 01 '18 at 15:33
  • Welcome to Ask Ubuntu! We're not a forum but focus on questions and answers that hopefully have bearing beyond a single person. Therefore we strive to have high quality answers and questions that are clear as to what they aim to achieve. That you found a solution to your specific issue doesn't change that lack of clarity as to what you actually want to achieve. See my previous comment as to the reason (imho). – David Foerster Jan 01 '18 at 15:37
  • This question already has an answer here: -- That's not an answer to my question. I used the word "Still". – Sudarshan Kakoty Jan 01 '18 at 18:51

2 Answers2

4

No,

That is not advised any more...

Why?

The CD/DVD Image will not have the entire 1.1TB of Ubuntu Repository files available, so doing an upgrade from CD would give you a partially upgraded system at best.

Sorry! :-(

Community
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Fabby
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2

I got it using the Kubuntu-devel-release-upgrade command:

Development Release

Zanna
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Sudarshan Kakoty
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