Daniel R.'s Blog: VirtualBox Virtualization Platform supported by Sun

Sun xVM VirtualBox supported many operating system as host
Windows Hosts
* Windows XP, all service packs (32-bit)
* Windows Server 2003 (32-bit)
* Windows Server 2008
* Windows Vista (32-bit and 64-bit)
Apple Mac OS X Hosts
* Intel hardware only, all versions of Mac OS X supported
Linux Hosts
* 32-bit and 64-bit
* Debian GNU/Linux 3.1 ("sarge") and 4.0 ("etch")
* Fedora Core 4 to 8
* Gentoo Linux
* Redhat Enterprise Linux 3, 4 and 5
* SUSE Linux 9 and 10, openSUSE 10.1, 10.2 and 10.3
* Ubuntu 5.10, 6.06, 6.10, 7.04, 7.10 ("Gutsy Gibbon"), 8.04 ("Hardy Heron")
* Mandriva 2007.1 and 2008.0
Solaris OS Hosts
* 32-bit and 64-bit
* OpenSolaris ("Nevada" build 81 and higher)
* Solaris 10 OS (u5 and higher)

Steps to install using apt-get:
# apt-get install virtualbox
will give VirtualBox-ose (open source edition)

I want to have the latest version from Sun, so that I downloaded manually from:
http://www.sun.com/software/products/virtualbox/get.jsp

Steps to install without apt-get
# dpkg -i virtualbox_1.6.4-33808_Ubuntu_hardy_amd64.deb
Note: I used Ubuntu Desktop 64-bit, so the package is virtualbox_x.x.x.xxx_amd64.deb

Users that can manage the VirtualBox should be a member of vboxusers group.
Steps:
# usermod -G adm,dialout,cdrom,floppy,audio,dip,video,plugdev,fuse,lpadmin,admin,vboxusers dani3lr
Note: adm,dialout,cdrom,floppy,audio,dip,video,plugdev,fuse,lpadmin,admin are default groups from my user account after Ubuntu setup. I added vboxusers.

Need logoff and login again, then verify:
$ groups
dani3lr adm dialout cdrom floppy audio dip video plugdev fuse lpadmin admin vboxusers

Run: VirtualBox
or use the shortcut created by setup in Applications, System Tools, Sun xVM VirtualBox.