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Im wondering how to mount my second HDD to my /home folder like you do in other *NIX systems, making the mount point just that folder and not a standard HDD.

I am aware of the method of copying my /home folder and then telling OSX via System Preferences/Users & Groups to look for the folder in a different location.

What I am wondering is if there is a way to properly mount the entire HDD to become nothing more than my /home. I don't want it to even show up in Finder as an HDD. Is this even possible?

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The underlying mount command is there, so you could use it to mount the disc as part of a script running as boot time. The MacOS boot sequence is a little weird; you'll need to create an item in the /System/StartupItems directory to the proper specifications.

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