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On a Mac Lion 10.7.5 I have 5 USB external disk and I'm not using them all the time so I want to prevent it to mount at boot and only mount the one I need when needed.

How can I achieve this ?

Thank you

Merlin
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1 Answers1

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It depends on how you clarify 'mount at boot'. Do you mean the user login or the actual system boot...

Anyway, here are two ways you can handle this.

  1. You can use one of the Startup shortcuts. In your case holding ⏏ during startup will eject all removable disks. To be honest, I am not 100% if your external USB drives are seen as such.

  2. Edit your /etc/fstab file, the file systems table. This table contains info on how to mount which disk. If the file does not exist, you can create it. Manual pages are here.

At this to your /etc/fstab.

# device-spec     mount-point     fs-type     options 
LABEL=VolumeName  none            hfs         noauto
CousinCocaine
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  • The "possible duplicate link" explain this quit well. It seams that's the good solution. Some of my externals hard drives are FAT32 (vfat) to no UUID. How do I point on vfat HD in /etc/fstab ? – Merlin Oct 15 '14 at 10:44
  • That would be:LABEL=VolumeName none vfat noauto – CousinCocaine Oct 15 '14 at 11:37