- Connect to your cloudkey with SSH.
Use root as username and the password set in the Unifi OS console - Download the version of the app you want to install:
wget https://dl.ui.com/unifi/6.5.55/unifi_sysvinit_all.deb
(You can find links on the release notes for the relevant version). - Run
dpkg -i unifi_sysvinit_all.deb - Run
rm unifi_sysvinit_all.deb