How to update collector from Ubuntu 24.04 to 26.04

Check current version lsb_release -a. The update release is already at the desired version if the result is showing “Release: 26.04” or above. If it shows a version below 26.04 proceed with the next steps.
 

Update agent and any other outdated packages.

sudo apt update 
sudo apt-get upgrade -o APT::Get::Always-Include-Phased-Updates=true
 

When prompted, press 'Y' and ‘Enter’ to confirm the upgrade process. 

Proceed with OS upgrade.

sudo DEBIAN_FRONTEND=noninteractive do-release-upgrade -d -f DistUpgradeViewNonInteractive

The need for -d should be recorded as a current limitation of the Noble-to-Resolute test path because at the time of writing this document Resolute was not enabled in the normal LTS upgrade channel.
 

If the release-upgrade tool installed is not found, install it, then repeat step #3.

sudo apt install update-manager-core

This will launch the upgrade to 26.04 in non interactive mode, will go through a default installation.
 

Reboot the VM.
 

Check for upgraded version with lsb_release -a. It should display “Release: 26.04”.

Modify auvik-agent’s source. Ubuntu doesn’t automatically expect resolute versions of all it’s packages, there’s an additional step to enable further apt updates of the auvik-agent.
These steps will point the update sources of the package to the resolute version and re-enable it: