pfSense

In the Hyper-V environment, there's an observed behavior where pfSense does not appear to search for config.xml files for the External Configuration Locator (ECL) within CD/DVD drives. Given the limitation in Hyper-V where virtual USB drives cannot be mounted natively, adding support for reading from CD/DVD drives for ECL would provide a valuable solution to this challenge.

1. Setup a pfSense instance on Hyper-V.
2. Create an ISO with the required file structure (/config/config.xml).
3. Mount this ISO using the virtual disc drive in Hyper-V.
4. Boot the pfSense instance and observe that pfSense ignores the config.xml found within the CD/DVD drive, indicating that it doesn't search CD/DVD drives for ECL files.

Benefit:
Introducing this feature would empower Hyper-V users to utilize the External Configuration Locator via CD/DVD drives, offering an alternative solution to the USB limitation and enhancing the usability of pfSense in Hyper-V environments. Without this functionality, I am unable to deploy pfSense automatically at scale without modifying the original distribution ISO, which I would prefer to avoid.