Service running on macOS cannot access files on attached volumes

Question

I am running the Logitech Media Server (LMS) on my iMac. The media is on a separate network drive. After a recent macOS upgrade, LMS is no longer able to access the files on the network drive.

I'm currently running macOS Catalina, version 10.15.7.

I can view the files in the Finder:

However when I access the services settings, I cannot select the "Shared Music" folder:

What do I need to do so that the LMS can access the "Shared Music" folder in the Public volume?

Answer 1

I used the ps command to see how LMS is run, and I found the following:

$ ps | grep slim
92012 ttys000    0:00.00 grep slim
90577 ttys004    0:11.23 /usr/bin/perl5.18 ./slimserver.pl -psn_0_44415577

The LMS developers told me to grant perl5.18 full disk access since that is the command that is used to run the service. I tried that, but it didn't work.

I had already given the perl command full disk access. (System Preferenes -> Security & Privacy -> Privacy tab -> select Full Disk Access and add perl to the app list.)

So I stopped the LMS service and started it from the command line using the perl command instead of the perl5.18 command:

$ /usr/bin/perl ./slimserver.pl -psn_0_44415577