My system is a dual boot Win 7 / Ubuntu 14.04LTS / Grub.

My objective is to have a fresh install 18.04 on top of the existing 14.04, given there is the other OS.

I found several sources, but mostly dealing with 16.04 -> 18.04. I guess it should work right away.

Should I take any special consideration to make it work, different from a regular installation of 18.04 on a Win 7 taking up the whole disk?

(Now I will already have the extra partitions that the Ubuntu installer creates, etc.)

  • Indeed I meant backup. 😁 – user68186 Aug 17 '18 at 14:50
  • Please don't ask the same question twice. Possible duplicate of Clone backup/restore Ubuntu 18.04 in a dual boot Win/Ubuntu – user68186 Aug 17 '18 at 15:01
  • @user68186 - They are not the same question. I explicitly took care of separating the questions because they are different (but related). This one deals with installing one version on top of the other (while the companion Win is 7), The other deals with recovering a backup (while the companion Win is 10). I hoped to make it clear. Please let me know if, with this remark, they still look the same. – sancho.s Aug 17 '18 at 21:41
  • I have all valued files in Dropbox so am free to install or upgrade at will ... I strongly suggest you do similar ... there are way too many unknowables to act on blind faith – Scott Stensland Aug 18 '18 at 1:53
  • @ScottStensland - That is a safety precaution in case things fail. I would take some such precautions. – sancho.s Aug 18 '18 at 1:55

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