I'm tying to upgrade the Zabbix Server from 3.0 to 3.2 on Ubuntu 16.04 that I didn't install by myself and I don't know if it was istalled form repository or sources. I've done all the necessary backups and when I'm tying to execute this command
sudo apt-get install --only-upgrade zabbix-server-mysql zabbix-frontend-php zabbix-agent
I get this message
Skipping zabbix-server-mysql, it is not installed and only upgrades are requested.
I'm using MySQL with a working DB for Zabbix. Can the Zabbix Server be installd without the zabbix-server-mysql package and still use the MySQL database? If yes, does it mean that the previous user installed it from sources and not from the repository?
I didn't find similar problems searching the net so maybe someone here can help me.
dpkg-query -l 'zabbix*'
You'll see if Zabbix has been installed through the packages. According to the error message you have, I would say definitely no.
Do a typical install through the packages, re-enter the login/pass of your MySQL DB and it will upgrade it. Don't forget to make a backup first, just in case something goes wrong.