Can I Open An OS On VirtualBox From USB?

RobotLizard

Estimable
Apr 14, 2014
17
1
4,560
Hi all!

I really want to try out Steam OS, but don't want to install it over Windows 7 which I currently have.

I was going to use VirtualBox to do so, but it seems to only allow you to boot an OS from a disk.

I don't have any discs other than a CD-RW and I don't think I can mount an ISO on that.

So my questions are:

    Can I boot an OS in VirtualBox from a USB flash drive instead of a disc?
    Can I mount an ISO to a CD-RW, and if so how?


Thanks in advance!