Turn off auto mount for SDHC disk?

Discussion in 'Mac OS X Lion (10.7)' started by harnadem, Jun 15, 2012.

  1. harnadem macrumors newbie

    Jul 27, 2011
    I am new to the OSX environment and have a question about mounting a SDHC disk. I use the SDHC for periodic backup purposes of some documents. I like to keep it in the SD socket of my MacBook Air for convenience sake. Since I do not need to access it on an on-going basis, is there a command setting that will stop OSX from auto mounting it at boot time?

    I am more familiar with linux and on that system, I can see the disk on my desktop (or in a directory menu) and can mount/unmount it by clicking on the name or icon. Is there something similar for OSX Lion?

    Thank you in advance for the help.
  2. MisterMe macrumors G4


    Jul 17, 2002
    Your "problem" is simply the way the Mac works. Macs have always automatically mounted all available volumes. You may then dismount non-boot volumes, but this is an affirmative action on the part of the user. Understand that dismounting a volume does not mean that you disconnect or eject it. There is probably a way to disable the SD card slot, but I would not recommend it.
  3. Partron22 macrumors 68020


    Apr 13, 2011

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