Replace (username) with your Account name (If you’re not sure, type whoami in Terminal and press Enter).

Go back to Finder, look inside Bootcamp Folder (or your VM folder) that win7.vmdk and win7-pt.vmdk are there.

It will show “RAW host disk access VMDK file win7.vmdk created successfully.” sudo vboxmanage internalcommands createrawvmdk -rawdisk /dev/disk0 -filename 'win7.vmdk' -partitions 4.Type cd, space, then Virt and press tab, Terminal will automatically complete the folder name for you. So make your paritition 4 (or whatever yours is) is the Bootcamp partition. Nothing will show while you’re typing the password, and it’s normal, keep typing and make sure you type correctly. Type your Admin password (should be your own password).Type it all in one line, and press Enter/Return sudo vboxmanage internalcommands listpartitions -rawdisk /dev/disk0.If your number from previous command is not 4, replace it N with yours, in disk0sN. Press Enter/Return, then look under “/dev/disk0” find the partition number associate with your VM (Bootcamp). Open Terminal (Applications > Utilities > Terminal) and type these commands,.Open Finder, go to Home Directory, look for folder named “VirtualBox VMs”, make sure it contains your VM folder (mine is Bootcamp).Virtual Hard Disk, leave it like that for now, don’t close it or anything, we’ll do something else before continue.Allocate Memory (Ram) for the VM (essentially, you should give at least 1 GB, 1024 MB), press Continue.Name your VM, select Windows 7, click Continue (I name mine “Bootcamp”).Create New Virtual Machine, follow the step until you have to select Virtual Hard Disk, leave it like that.Instead of creating a virtual hard disk file like normal virtual machine, it uses a small special file that essential let the VM access the real physical disk. So the data stays in sync whether you boot up from Bootcamp or VBox inside Mac OS (since it’s really the same installation). It lets you startup Windows 7 that you have on Bootcamp as a virtual machine ( VM) relatively easy. Well, VirtualBox can certainly help you ! It’s a great piece of freeware that I recently fell in love with. And you want to keep Bootcamp, since it lets you run Windows to its potential.

Sometimes you want to do a little task that really has to be run on Windows or there’s no alternative software for Mac, but you don’t want to reboot into Bootcamp to do it.

Mac virtual machine on windows 7