I tried to upgrade my ubuntu version by following command, but got an error like this:
Your Ubuntu release is not supported anymore.
For upgrade information, please visit:
http://www.ubuntu.com/releaseendoflife
Please install all available updates for your release before upgrading.
this is the way that I tried
sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo apt autoremove
sudo do-release-upgrade
Btw the upgrade button on software updater not working
I appreciate in advance
