dual boot virtualization (OS X and Ubuntu)

[nobodyfamous]

I will be dual booting OS X 10.5 and Ubuntu 12. I want to be able to VM the "other" OS.

I found an article*** with good info on how to do it with OS X and Windows 7. Can I do the same from OS X and VM Ubuntu? Then can I do the same thing from Ubuntu and VM OS X?

In the article he "auto" un-mounts the Windows 7 partition, I would like to leave it mounted IF OS X and Ubuntu will be able to read/write to both partitions, Will they? I know I will have to unmount it to virtualize it, but file "sharing" will be quicker if I don't have to start the VM.

So to recap the questions
1. Will a dual boot of Ubuntu and OS X be able to read/write to each other's partitions?
2. Can I VM an Ubuntu partition from OS X?
3. Can I VM an OS X partition from Ubuntu?

P.S.
I love VirtualBox - it kicks the crap out of Parallels. Way better value for the price!

*** cant post a link yet, google "virtualbox boot camp" and it is the first one in the list

[mpack]

Moving this topic to "Mac hosts".

[nobodyfamous]

Sorry about the post in the wrong place. I wasn't sure as I would be in OS X as a host and Ubuntu as a host. Anyhow, I did some reading up on the file systems and see there is really no way to straight "share" between the partitions. So I will have to virtualize each, with the partitions un-mounted from boot.

Still looking for any extra info I can get, maybe someone else doing this?

[mpack]

Sorry about the post in the wrong place. I wasn't sure as I would be in OS X as a host and Ubuntu as a host.

The discussion is only useful for owners of Mac hosts, as they are the only ones licensed to have OS X as a guest.