You can update only the Photon OS packages that have published security advisories, and ignore the packages with non-security updates.

If your environment consists of a vCloud Director appliance, you can apply security patches to the Photon OS by using directly the YUM-compatible package manager tdnf.

Applying updates to the Photon OS does not update the vCloud Director build.


  1. Verify that there are security updates for the installed packages.
    tdnf updateinfo list
  2. (Optional) To see more details about all published security advisories, run the following command:
    tdnf updateinfo info
  3. Update the packages with security advisories.
    tdnf upgrade --security
  4. Restart the appliance.
  5. Repeat the procedure for each vCloud Director appliance.