I have the ISO image file (that is,
*.iso) and I am trying to boot my VirtualBox installation with this image. Is it possible? I know how to mount my ISO image to my filesystem (on my host machine), but I don't think VirtualBox boots an OS from a location on my file system.
I've even tried to mimic mounting, such that VirtualBox thinks it has to boot from the CD drive, but this failed.
What is the correct way to boot an OS from an ISO image in VirtualBox?
My host machine is Ubuntu 10.04 (Lucid Lynx) and my VirtualBox version is 4.1.4.
I would venture to say you are overcomplicating things! You only need to mount the iso in the virtual machine.
Under IDE Controller There should be an icon that shows a CD with a + sign on it, to create a new disc drive as shown highlighted in yellow color in the below snapshot:
A box will come up, click Choose Disk
Should boot into the iso like it's in the disc drive.