I successfully upgraded from 19.10 to 20.04. I then went looking for a few new themes and in an effort to test out the POP_OS theme, I accidentally installed the ppa:system76/pop PPA repo, and during an update if updated a tonne of stuff, including my kernel, libs, etc. I really only wanted the POP_OS theme, but now I feel I'm in a weird hybrid state. I am looking for a way for force a reinstall of a clean 20.04 over top, without completely wiping my installation out with a clean install.


You can at any time reinstall while leaving your current system in place with a live DVD/USB. In the installer, select "Something else". Assign the same root ("/") partition as you currently have, and make sure to uncheck the "Format" checkmark. Depending on your current setup, you may also need to assign other partitions to indicate your current situation to the installer (each time making sure you do not reformat).

This procedure reinstalls the entire system, including all your currently installed applications, with fresh system configuration while leaving your current user configuration and data in place.

  • It would be nice to have this as a pre-configured menu option – andyczerwonka Aug 31 '20 at 18:59
  • @andyczerwonka impossible, because the installer cannot know in case a system is configured differently. – vanadium Sep 1 '20 at 10:14
  • it can interrogate when the root partition is mounted, it can find out where the OS is installed. – andyczerwonka Sep 1 '20 at 14:42
  • Its super important to remember the exact user as first image installed, and create the user/pass exactly the same in the second install – Javier Apr 7 at 21:10

sudo ppa-purge ppa:system76/pop did the trick!

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