Note: This needs to be done after hours as devices may lose connectivity for about 10 seconds to re-provision.
- Get URL for latest stable UniFi Controller: https://www.ui.com/download/ Then click on UniFi. Then look for software category. Then click on UniFi Network Application Debian file. Then click Download link. Accept EULA. Then review download link location.
- SSH into server and log in as root.
- Stop the UniFi controller service
# service unifi stop - Download the Unix version of the UniFi controller replacing the version number in the URL from Step 1:
# wget https://dl.ui.com/unifi/6.xx.xx/UniFi.unix.zip - Unzip the downloaded file:
# unzip UniFi.unix.zip - Move existing UniFi controller to a backup folder:
# mv /opt/UniFi/ /opt/UniFi_bak - Move new UniFi controller files to final location:
# mv UniFi/ /opt - Copy existing database (with all info about your UniFi devices) files to final location:
# cp -rf /opt/UniFi_bak/data/ /opt/UniFi/data/ - Change ownership of files to match what your controller runs as:
# chown -R ubnt. /opt/UniFi - Start new UniFi controller software:
# service unifi start
(wait for database to be upgraded in background, may take a few minutes before you are able to log in)
Optional prune database to optimize performance issues:
https://help.ubnt.com/hc/en-us/articles/204911424-UniFi-How-to-Remove-Prune-Older-Data-and-Adjust-Mongo-Database-Size#3.%20How%20to%20Prune%20Linux
