How To Prevent Spotlight From Indexing External Drives on MacOS

Published Date Author: , Posted February 26th, 2021 at 11:46:15am

On MacOSX 10.10.5 Yosemite, I was having trouble with Spotlight preventing the clean eject of an attached hard drive.

Using the fuser command allowed me to see that it what the Spotlight-specific mds process preventing the eject.

At first, I tried to disable the indexing via the mdutil command, but that just gave me an error:

I ended up having to force eject the drive:

The actual solution was so very simple, just create an empty file at the root of each external drive you with to prevent being indexed:

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