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As above, upgrading to 2204. Thanks.

Have downloaded the (desktop) ISO, sitting on my Desktop. Can I then mount it and use it directly (without burning to DVD/USB), to upgrade the OS??

hornetster
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  • You've not actually asked any question! Title may not be readable on many devices that view the site, so please correct your question. – guiverc Apr 22 '22 at 01:47
  • You can upgrade via re-install using the ISO; it's most useful for Desktop systems, but you've not provided any clues as to if you're talking about Desktop or Server installs - as the effects differ. It's very smooth if you have no 3rd party packages on your system (QA-testing of the procedure is done only using Ubuntu repository software) – guiverc Apr 22 '22 at 01:48
  • my experience for desktop x64 was an option to install side by side and choose on boot. I declined. if you do, do a Clonezilla or other complete disk/partition backup. I was under the impression that LTS for 20.04 would not require a new complete install for a 'better' 22.x version. ahh see here https://askubuntu.com/questions/1403616/22-04-lts-sudo-do-release-upgrade-does-not-work – pierrely Apr 22 '22 at 03:36
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    Does this answer your question? Install Ubuntu from ISO image directly from hard disk of a system running Linux? – vanadium Apr 22 '22 at 06:33
  • FYI: The Ubuntu 22.04 LTS release notes state rather clearly "There are no offline upgrade options for Ubuntu Desktop and Ubuntu Server." ... thus the upgrade via re-install is what I mentioned before... it's not really an upgrade; but is a re-install that doesn't touch your changes/settings/files & auto-reinstalls your manually installed packages automatically if from Ubuntu repositories... see my prior comment – guiverc Apr 24 '22 at 01:22

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