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getent passwd observium If all commands return empty or "not found", Observium has been from your Ubuntu system. Troubleshooting Common Uninstall Issues "Database observium doesn’t exist" when dropping That’s fine. Just move to the next step. Unable to stop services: "Failed to stop service: Unit not found" You likely used cron instead of systemd. Skip to removing cron jobs. Web server fails to reload after removing configuration Check your syntax with sudo nginx -t (Nginx) or sudo apachectl configtest (Apache). You may have forgotten to remove the include directive for Observium from the main config. Permissions denied when deleting files/folders Use sudo to delete files. If you still get permission errors, check for immutable flags:
sudo mysql -u root -p -e "SHOW DATABASES;" | grep observium (You should see no output.) The standard Observium installation locates all web and application files under /opt/observium . Additionally, it may store logs and RRD (Round Robin Database) files elsewhere. uninstall observium ubuntu
sudo systemctl status observium_discovery.timer If you want a permanent removal, disable and remove the timer units so they don’t resurrect after a reboot. getent passwd observium If all commands return empty
sudo nginx -t sudo systemctl reload nginx Observium typically adds a cron job to run the poller and discovery process every 5 minutes or hour. If you were using cron (not systemd), delete the associated file. Unable to stop services: "Failed to stop service:
dpkg -l | grep php | grep -E "mysql|snmp|gd|curl|mcrypt" If your server runs other PHP applications (e.g., WordPress, Nextcloud), do not purge PHP modules. Only remove the Observium-specific packages if not shared. Step 9: Remove RRDtool and SNMP Tools (If Exclusive to Observium) RRDtool and SNMP tools are heavy dependencies. If you installed them solely for Observium, you can remove them:
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