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Is there a way to make Spotlight show files that reside in different unmounted Volumes?

I think there is no official way of doing this, and that Apple does not provide a plugin API that allows this kind of behavoiur but, is there any hacky way this could be implemented?

(Maybe in a similar way to the Spotlight Google Importer:)

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up vote 1 down vote accepted

The official way is to store files on Mac OS X server volumes where the spotlight server functionality has been written to provide search of unmounted volumes.

I am unaware of a free or open source effort to recreate this function but it is certainly doable. If you only want filename search, you could use locate and launchd to extend the local copy of the locate database each time an external drive is mounted.

Many replacement tools catalog external volumes but they don't inject data into spotlight and you have to use their app to get at offline index data. Here are two that have been around a long time but also updated for snow leopard.

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Good findings, thanks for the useful information. I want to add that in case anybody still wants to modify Spotlight (or any other Cocoa application) you can use SIMBL hacking to do so: – Ricardo Sánchez-Sáez May 16 '11 at 15:47
And these are the Spotlight relevant files: - – Ricardo Sánchez-Sáez May 16 '11 at 15:47

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