Score:4

Should I install the ubuntu-22.04 iso and then upgrade to the latest LTS version?

de flag

The latest LTS Ubuntu version appears to be 22.04.2. I have a Ubuntu 22.04 ISO file.

Is it a good idea to just install this file and upgrade later? What should I do to upgrade?

user535733 avatar
cn flag
Whether or not installing Ubuntu 22.04.2 is a good idea depends upon your intended use. For some folks it's a great idea. For some folks it's not.
Score:14
cn flag

If you install a Ubuntu 22.04 LTS system using any of the available media, ie.

  • Ubuntu 22.04 LTS original media
  • Ubuntu 22.04.1 LTS updated media
  • Ubuntu 22.04.2 LTS updated media (or later)

and apply all system upgrades (ie. sudo apt update to update software lists & sudo apt full-upgrade to apply the found upgrades) you'll be using the latest Ubuntu 22.04 LTS system.

If you note the various announcements, eg. https://fridge.ubuntu.com/2023/02/24/ubuntu-22-04-2-lts-released/ for Ubuntu 22.04.2 LTS you'll read

As usual, this point release includes many updates and updated installation media has been provided so that fewer updates will need to be downloaded after installation. These include security updates and corrections for other high-severity bugs, with a focus on maintaining stability and compatibility with Ubuntu 22.04 LTS. ...

For some flavors of Ubuntu, eg. Lubuntu (but it's not alone, as this applies to Xubuntu too), installs using 22.04 or 22.04.1 ISOs/media will have your system use the GA kernel stack, where as 22.04.2 & later media will have your system using the HWE kernel stack. This however does not apply to Ubuntu Desktop 22.04 media (which defaults to HWE for all ISOs), or Ubuntu Server 22.04 (which defaults to the GA kernel stack). ie. the installation media can influence packages installed, but these defaults can be changed post-install & all systems will upgrade to the latest if you're applying all security fixes/patches with sudo apt full-upgrade with correct sources & updated software lists.

Refer https://wiki.ubuntu.com/Kernel/LTSEnablementStack for more details on kernel stack choices.

ie. there is no need to re-install. Just perform normal upgrades, and in fact if you had an installed system & had applied all upgrades, you were using 22.04.2 in the week before the ISO release date too.

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