Turn off auto mount for SDHC disk?

[harnadem]

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.

 

[MisterMe]

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.

 

[Partron22]

TinkerTool reportedly can block automounting. -I've not tried it personally.
-From this old hint: Prevent a given partition from mounting at boot System

More recently at Stack Exchange:
How do I prevent a partition on the hard drive from auto-mounting on boot?:

Here's a little launch daemon that does the job on Lion - blocks auto mount of volumes with specified labels:
https://github.com/nanoant/mountblockd