Include external drive in Spotlight search

I have a large external drive, that contains several hundred thousand photos connected to my Mac Studio, running MacOS 12.6 I’ve just noticed that Spotlight isn’t indexing it. When I look in System Preferences → Spotlight → Privacy, the drive in question is not listed, so there’s no reason that it shouldn’t be indexing.

How can I enable Spotlight searching for this drive? (I’ve searched the internet, and not come up with a solution.)

Does this item from the Apple support forums help?


I rebooted my Mac, and then entered sudo mdutil -i on “/Volumes/”, and then all was good. Spotlight enabled, and appears to be working as expected! Yay! :grinning: