Cant upgrade from 3.0 to 4.0

[magik20]

Hi

I've just installed Zabbix for the 1st time on a Ubuntu 18 server.

As I was fumbling around figuring out the install, I installed 3.0 instead of 4.0

I've been trying to upgrade to 4.0 using the instructions here, but it doesnt work.

https://www.zabbix.com/documentation/4.0/manual/installation/upgrade/packages/debian_ubuntu

After getting the files and unpackaging, running this command just tells me that everything is already at the highest verison.

# apt-get install --only-upgrade zabbix-server-mysql zabbix-frontend-php zabbix-agent

So I'm a bit stuck on what to do next.

[ingus.vilnis]

Hello and welcome to Zabbix forums!

Since you did a clean install would you consider removing it completely and installing from scratch? There would not be such high loss of monitoring and configuration data.

I am suggesting this because during upgrade you will not have the latest 4.0 related updates in the pre-configured data as templates, dashboards, config files etc. Just make sure you drop the database of 3.0 properly before that.