Selecting which partitions to mount by default.

[Rob]

Hi, been a good long while since I posted on here... Don't know if the same knowledgeable bunch are about but hopefully someone can help me!

Basically, I'm wondering if there is a way to select which partitions of a drive the OS mounts when it's plugged in. My external HD has several partitions, for example an image of a snow leopard install disk, that I don't really want to have load by default, more just mount them as and when I need them.

So yeah, not a need to know thing, just a nice to know if anyone can help  thanks