I manged to get Graylog running again by upgrading MongoDB to version 4.2.
I’m now trying to upgrade Graylog from version 2.4.6-1 to Graylog 2.5 by following the instructions below
sudo dpkg -i graylog-2.5-repository_latest.deb
sudo apt-get update
sudo apt-get install graylog-server
Unfortunately I’m Graylog is still saying the following after a reboot
I also checked the System / Nodes System and it’s still showing this version number.
Version: 2.4.6+ceaa7e4, codename Wildwuchs
Please can you confirm how I upgrade this version of Graylog?