I'm trying to update Xubuntu 22.04 LTS to 24.04 LTS on my headless server without success.
What I've tried:
- I installed
update-managerto be able to upgrade to 24.04 (as stated on the Xubuntu website) using Remmina / XRDP. However, when executingupdate-manager -c -d, I do get a message telling me that there's a newer version of Xubuntu, but when clicking "Update...", I'm being thrown out the application with an error message that saysError executing command as another user: Not authorizeddespite having typed my sudo password after application start. - When executing
sudo update-manager -c -d, I'm getting a warningGtk-WARNING: cannot open display: :10.0and the application exits.
So I tried a pure-cli approach:
sudo apt update && sudo apt -y upgrade && sudo apt -y dist-upgradesudo vim /etc/update-manager/release-upgradesand setPrompt=ltssudo do-release-upgradewill just tell me that there's no development version of an LTS available.
What am I missing here? What am I doing wrong?
I've also posted this question on Server Fault, however without getting an answer.
Thanks in advance.