virtualbox.org

Quick questions:

1- If I am creating a virtual disk using VboxManage createhd, how do I specify to use a dynamically expanding image?

2- How do I specify I am using a sata virtual disk instead of IDE for boot/main hd? Just do not define a IDE virtual drive?

1: It's in the help output of the command. By default, dynamic files are created.

2: You attach drives to either IDE or SATA, you don't create them like that.