Zabbix Server 6-to-7 Upgrade

Backup Files

• Partial backup of the database

sudo mysqldump --no-data zabbix > zabbix_backup.sql

sudo mysqldump --no-create-info --ignore-table=zabbix.history --ignore-table=zabbix.history_uint --ignore-table=zabbix.history_text --ignore-table=zabbix.history_log --ignore-table=zabbix.history_str --ignore-table=zabbix.trends --ignore-table=zabbix.trends_uint --ignore-table=zabbix.auditlog zabbix >> zabbix_backup.sql

• Full backup of the database: mysqldump zabbix > zabbix_backup_full.sql
• Copy config files

sudo cp /etc/zabbix/zabbix_server.conf .
sudo cp /etc/zabbix/zabbix_agent2.conf .

• Save server config file parameters: sudo grep "^[^#]" /etc/zabbix/zabbix_server.conf | tee server_params
• Save agent config file parameters: sudo grep "^[^#]" /etc/zabbix/zabbix_agent2.conf | tee agent2_params

Stop Services

• Stop Zabbix Server service: sudo systemctl stop zabbix-server.service
• Stop Zabbix Agent service: sudo systemctl stop zabbix-agent2.service
• Stop Apache service: sudo systemctl stop apache2.service

Upgrade

• Remove the current Zabbix repo source: sudo rm -Rf /etc/apt/sources.list.d/zabbix.list
• Download repo source: wget https://repo.zabbix.com/zabbix/7.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_7.0-2+ubuntu22.04_all.deb
• Install source: sudo dpkg -i zabbix-release_7.0-2+ubuntu22.04_all.deb
  • Overwrite of /etc/apt/sources.list.d/zabbix.list: Yes
• Update from sources: sudo apt update
• Upgrade: sudo apt upgrade -y
  • When asking to overwrite files, use "D" to show the file differences. Save those differences so you can put back the parameters later

Fix Config Files

• Edit the server config: sudo nano /etc/zabbix/zabbix_server.conf
  • Put custom parameters back
• Edit the server config: sudo nano /etc/zabbix/zabbix_agent2.conf
  • Put custom parameters back

Start Services

• In a separate SSH session, monitor the Zabbix server log sudo tail -f /var/log/zabbix/zabbix_server.log
• Start the Zabbix Server service: sudo systemctl start zabbix-server.service
• Start the Zabbix Agent service: sudo systemctl start zabbix-agent2.service
• Start the Apache service: sudo systemctl start apache2.service
  • If service won't start and journalctl complains about missing plugins, might need to sudo apt install zabbix-agent2-plugin-postgresql zabbix-agent2-plugin-mongodb