Hello, I am trying to upgrade an iMac9,1 20 inch (Early 2009) from Zorin Core 17 to Core 18. I updated all the softwares and packages before starting. Started the upgrade process. Then the software updater showed up Saying "Not all updates can be installed". I pressed "Continue" then got an error a…

Do You have added any Third-Party Repo's? If yes, delete them all. You can add them later again. Then type in the Terminal sudo apt update && sudo apt upgrade and when that is done type sudo apt install -f

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Upgrade Core 17 to 18 error messages unsure what to do

Installing Zorin OS

Aravisian Split this topic February 27, 2026, 5:38pm 6

9 posts were split to a new topic: Brewing Brave Browser on Zorin OS

Brewing Brave Browser on Zorin OS