GNU/Linux Elementary OS Updating System Guide
Hi! The Tutorial shows you Step-by-Step How to Update Packages & System in Elementary OS LTS GNU/Linux Desktop.
And here I explain How to Update/Upgrade Linux Elementary OS easily on Command Line.
But at your choice there is also the possibility to see instead: How to Update/Upgrade System with GUI.
Especially relevant: after if the suited result is Not achieved, you may be also interested about How to Upgrade Kernel on Elementary OS.
1. Terminal QuickStart
How to QuickStart with Command Line on Elementary OS:
First Update the Apt Repo Sources with:
sudo apt update
Contents