fstab

How to prevent a volume from mounting at boot in OS X

OS X will automatically attempt to mount an attached volume when the system is started, and if successful the volume will appear in the Finder either in the sidebar or on your desktop if you have these options enabled. However, there may be instances such as in multi-boot environments when you might want a specific volume to remain unmounted.

With multiple boot volumes in a system, when loaded in one operating system it is relatively easy to access and edit important files on the boot disk of other operating systems. Therefore, keeping the unused boot drive unmounted may be a … Read more