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Prevent a given partition from mounting at boot
Authored by: hamaslama on Dec 16, '07 11:47:42AM

I figured it out.
Step by step it goes like this:
Open console, click on system.log, type "localhost diskarbitrationd" into the filter window, stretch the window the full width of your screen and you can copy the UUID of the disk you don't want to mount. Open TextEdit and paste it there.
Now open Terminal and enter "sudo pico /etc/fstab" then hit enter, enter your administrator password, now, go back to TextEdit and copy paste the following: "UUID="the UUID you copied from console" none hfs rw,noauto" and then cut and copy your UUID into the location between the quotes, of course leave out all of the quotes, then copy the whole string (mine looked like this: "UUID=09BFBF06-7E2F-3364-B894-649958051693 none hfs rw,noauto", then paste it into Terminal and hit enter. Next, type cntrl "O" (the letter O not the zero) then just hit the enter key and it should save the newly created fstab file in your~ /private/etc/directory.
Next, restart and the partition will not appear on the desktop but will be accessible with disk utility. Works like a charm. I'm using OS 10.4.10.

Hope this helps some newbie like myself...

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